Golf ball

Abstract

To provide improved aerodynamic performance attributes that generally provide greater control of the golf ball flight and distance.SOLUTION: A golf ball is disclosed herein that has at least one modified aerodynamic characteristic or performance trait. More specifically, the golf ball disclosed herein can include a dimple pattern having a specific drag coefficient and / or specific integrated drag area.SELECTED DRAWING: Figure 4A

Description

[Technical Field]

[0001] The present disclosure relates generally to golf balls, and more particularly to aerodynamic performance attributes of golf balls. [Background technology]

[0002] It is generally known that the aerodynamic characteristics of a golf ball significantly affect the flight of the golf ball and therefore the overall performance of the golf ball. In one aspect, the aerodynamic characteristics or properties of the ball are affected by the dimple pattern of the golf ball.

[0003] It would be desirable to provide improved aerodynamic performance attributes that generally provide greater control over golf ball flight and distance. Summary of the Invention

[0004] In various embodiments disclosed herein, golf balls are provided that may have specific aerodynamic performance attributes or characteristics. In other embodiments, certain aerodynamic performance attributes or characteristics may be paired or matched with specific ball structures, thereby resulting in specific golf ball behavior. In some embodiments, specific golf ball dimple patterns or dimple parameters are recited herein that result in a specific aerodynamic profile having at least one of the disclosed aerodynamic performance attributes or characteristics.

[0005] In one embodiment, a golf ball is disclosed that includes at least a core and a cover. The golf ball may include at least one additional layer in addition to the core and cover. In one embodiment, the golf ball may include a multi-layer core, a multi-layer cover, and / or a multi-layer casing / intermediate layer. Further details of the golf ball construction are provided herein.

[0006] In one embodiment, the golf ball can have a weight of 1.600 ounces to 1.620 ounces. In one embodiment, the golf ball can have a weight of less than 1.600 ounces or more than 1.620 ounces. Those skilled in the art will appreciate that the weight of a golf ball can vary.

[0007] In one embodiment, the golf ball has a diameter between 1.680 inches and 1.700 inches. In one embodiment, the golf ball can have a diameter greater than 1.700 inches or less than 1.680 inches. One of ordinary skill in the art will appreciate that the size or diameter of a golf ball can vary.

[0008] The cover provides a range of drag coefficients (C D ) and lift coefficient (C L In one embodiment, the drag coefficient is 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, and the drag coefficient is 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≤ 0.250, and the drag coefficient is 0.230 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100. D ≦0.250.

[0009] In one embodiment, the drag coefficient is 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.240, and the drag coefficient is 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≦0.240.

[0010] In one embodiment, the drag coefficient is 0.235≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, and the drag coefficient is 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D≦0.250.

[0011] In one embodiment, the drag coefficient is 0.240≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, and the drag coefficient is 0.240 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≦0.250.

[0012] In one embodiment, the drag coefficient is 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D and the drag coefficient is 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D It has a range of

[0013] In one embodiment, the drag coefficient is 0.235≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.245, and the drag coefficient is 0.235 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≦0.245.

[0014] In one embodiment, the drag coefficient is 0.240≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≦0.245, and the drag coefficient is 0.240≦C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≦0.245.

[0015] In one embodiment, the drag coefficient is 0.240≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, and the drag coefficient is 0.240 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≦0.250.

[0016] In one embodiment, the drag coefficient is 0.245≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D≤ 0.250, and the drag coefficient is 0.245 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≦0.250.

[0017] In terms of lift coefficient, the golf ball has a C at a Reynolds number of 240,000 and a spin ratio of 0.060. L ≧0.115. In one embodiment, the golf ball has a C L It may have a lift coefficient that is ≦0.200.

[0018] In one embodiment, the golf ball has a C L ≥ 0.120, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.200.

[0019] In one embodiment, the golf ball has a C L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.195.

[0020] In one embodiment, the golf ball has a C L ≥ 0.120, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.195.

[0021] In one embodiment, the golf ball has a C L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.190.

[0022] In one embodiment, the golf ball has a C L ≥ 0.120, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.190.

[0023] In one embodiment, the golf ball has a C L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.185.

[0024] In one embodiment, the golf ball has a C L ≥ 0.120, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.185.

[0025] In one embodiment, the golf ball has a C L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.180.

[0026] In one embodiment, the golf ball has a C L ≥ 0.120, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.180.

[0027] In one embodiment, the golf ball has a C L ≥ 0.125, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.200.

[0028] In one embodiment, the golf ball has a C L ≥ 0.125, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.185.

[0029] In one embodiment, the golf ball has a C L ≥ 0.130, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.200.

[0030] In one embodiment, the golf ball has a C L ≥ 0.130, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.185.

[0031] In one particular embodiment, the drag coefficient and lift coefficient may have a particular relationship. This particular relationship may be associated with or define a flight window of the golf ball. In one embodiment, this particular relationship may be defined at a Reynolds number of 225,000 and a spin ratio of 0.070. In one embodiment, the drag coefficient and lift coefficient may be within the range of 1.600≦C D / C L <1.800. In another embodiment, the drag coefficient and lift coefficient have a relationship of 1.800≦C D / C L In yet another aspect, the drag and lift coefficients may have the relationship: C D / C L In yet another embodiment, the drag coefficient and lift coefficient may have a relationship of C D / C L In a further embodiment, the drag coefficient and lift coefficient may have the relationship 1.400≦C D / C LIn a further aspect, the drag coefficient and lift coefficient may have the relationship 1.400≦C D / C L <1.600. In a further embodiment, the drag coefficient and lift coefficient have a relationship of 1.600≦C D / C L <1.800. In a further embodiment, the drag coefficient and lift coefficient have a relationship of 1.600≦C D / C L < 2,000. Various other details regarding the relationship between drag coefficient and lift coefficient are provided herein.

[0032] The present disclosure provides various example patterns that exhibit the aerodynamic performance attributes or characteristics of the present disclosure.

[0033] In one embodiment, the dimple pattern has a surface coverage of 79.0% to 81.0% and a surface area of ​​0.0400 in 3 ~0.0500in 3 The golf ball may be made up of 250 to 270 dimples having a dimple volume of 1000 .mu.m.

[0034] In another embodiment, the dimple pattern has a surface coverage of 80.0% to 84.0% and a surface area of ​​0.0356 to 0.0435 in 3 The golf ball may be made up of 340 to 360 dimples having a dimple volume of 1000 dimples.

[0035] In another embodiment, the dimple pattern has a surface coverage of 77.0% to 80.0% and a surface area of ​​0.0400 in 3 ~0.0500in 3 The golf ball may be composed of 215 to 240 dimples having a dimple volume of 1000 .mu.m.

[0036] In another embodiment, the dimple pattern has a surface coverage of 76.0% to 79.0% and a surface area of ​​0.0400 in 3 ~0.0500in 3 It consists of 240 to 260 dimples with a dimple volume of .

[0037] In another embodiment, the dimple pattern has a surface coverage of 79.0% to 81.0% and a surface area of ​​0.0500 in 3 ~0.0600in 3 It consists of 250 to 270 dimples with a dimple volume of .

[0038] In another embodiment, the dimple pattern has a surface coverage of 77.0% to 80.0% and a surface area of ​​0.0375 in 3 ~0.0475in 3 It consists of 235 to 255 dimples with a dimple volume of .

[0039] In one embodiment, the dimple pattern has a surface coverage of 77.0% to 83.0% and a surface area of ​​0.0425 in 3 ~0.0575in 3 It consists of 220 to 270 dimples with a dimple volume of .

[0040] In another embodiment, the dimple pattern has a surface coverage of 80.0% to 85.0% and a surface area of ​​0.0380 in 3 ~0.0425in 3 It consists of 340 to 390 dimples with a dimple volume of .

[0041] In another embodiment, the dimple pattern comprises 280 to 420 dimples having a surface coverage of 70.0% to 81.0% and a maximum dimple diameter difference of at least 0.040 inches.

[0042] In another embodiment, the dimple pattern has a surface coverage of 76.0% to 85.0% and a surface area of ​​0.0350 in 3 ~0.0440in 3 It consists of 270 to 320 dimples with a dimple volume of .

[0043] In another embodiment, the dimple pattern has a surface coverage of 79.0% to 85.0% and a surface area of ​​0.0175 in 3 ~0.0375in 3It consists of 490 to 620 dimples with a dimple volume of .

[0044] In another embodiment, the dimple pattern has a surface coverage of 77.0% to 86.0% and a surface area of ​​0.0225 in 3 ~0.0450in 3 It consists of 390 to 490 dimples with a dimple volume of 1.

[0045] Various other example dimple patterns and / or dimple parameters are provided herein.

[0046] As disclosed herein, golf balls exhibiting the aerodynamic performance attributes or characteristics of the present disclosure may be associated with golf balls having various ball construction parameters. Golf ball constructions may be categorized or characterized generally according to particular performance characteristics, such as compression, coefficient of restitution, initial velocity, etc. Each of these parameters is described in more detail herein.

[0047] In one embodiment, the golf ball may have a compression of at least 80. In one embodiment, the golf ball may have a compression of at least 90. In another embodiment, the golf ball may have a compression of at least 95. Those skilled in the art will appreciate that compression may vary.

[0048] In one embodiment, the golf ball has a coefficient of restitution of at least 0.800. In another embodiment, the golf ball may have a coefficient of restitution of at least 0.805. In another embodiment, the golf ball may have a coefficient of restitution of at least 0.810. Those skilled in the art will appreciate that the coefficient of restitution may vary.

[0049] In one embodiment, the golf ball may have an initial velocity of at least 250 feet / second. In another embodiment, the initial velocity may be at least 252 feet / second. In another embodiment, the initial velocity may be at least 245 feet / second. Those skilled in the art will appreciate that the initial velocity may vary.

[0050] In one embodiment, the golf ball core can have a weight of at least 1.115 ounces. In one embodiment, the golf ball core can have a weight of at least 1.220 ounces. In one embodiment, the golf ball core can have a weight of at least 1.225 ounces. In one embodiment, the golf ball core can have a weight of at least 1.320 ounces.

[0051] In one embodiment, the golf ball core can have a diameter of at least 1.500 inches. In one embodiment, the golf ball core can have a diameter of at least 1.525 inches. In one embodiment, the golf ball core can have a diameter of at least 1.545 inches. In one embodiment, the golf ball core can have a diameter of at least 1.570 inches.

[0052] In one embodiment, the golf ball core can have a coefficient of restitution of at least 0.785. In one embodiment, the golf ball core can have a coefficient of restitution of at least 0.790. In one embodiment, the golf ball core can have a coefficient of restitution of at least 0.800.

[0053] In one embodiment, the golf ball may have a dimple pattern with a combined drag area (DA) defined by:

[0054]

number

[0055] In the formula, C D(Re) is established at launch conditions of a golf ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate of 2,700 rpm. In one embodiment, the integrated drag area may be defined as 14,500≦DA≦15,500.

[0056] In one embodiment, the integrated drag area may be defined as 14,750≦DA≦15,250.

[0057] In one embodiment, the integrated drag area may be defined as 14,500≦DA.

[0058] In one embodiment, the integrated drag area may be defined as 14,750≦DA.

[0059] In one embodiment, the integrated drag area may be defined as 15,000≦DA≦15,500.

[0060] In one embodiment, the integrated drag area may be defined as 15,250≦DA≦15,500.

[0061] In one embodiment, the integrated drag area may be defined as 15,000 ≦DA.

[0062] In one embodiment, the integrated drag area may be defined as 14,750≦DA≦15,500.

[0063] In one embodiment, the integrated drag area may be defined as 14,500≦DA≦15,250.

[0064] In one embodiment, the integrated drag area may be defined as 14,500≦DA≦15,000.

[0065] In yet another aspect, disclosed herein is a golf ball comprising at least a core and a cover. The golf ball can have a weight of 1.600 ounces to 1.620 ounces and a diameter of 1.680 inches to 1.700 inches. The golf ball can have a coefficient of restitution of at least 0.800 and an initial velocity of at least 250 feet per second. The cover can have a drag coefficient (C D ) and lift coefficient (C L ) wherein 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070 D ≤ 0.250, and 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≦0.250, and 0.230≦C at a Reynolds number of 120,000 and a spin ratio of 0.100. D ≤ 0.250, and C at a Reynolds number of 240,000 and a spin ratio of 0.060 L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L ≦0.200 and the dimple pattern has an integrated drag area (DA) defined by the following formula:

[0066]

number

[0067] In the formula, C D (Re) is established under launch conditions of a golf ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate of 2,700 rpm, and 14,500≦DA≦15,500.

[0068] In yet another embodiment, a golf ball is provided having a weight of 1.600 ounces to 1.620 ounces and a diameter of 1.680 inches to 1.700 inches, wherein the cover of the golf ball has a coefficient of drag (C D ), lift coefficient (C L), and a plurality of dimples arranged in a dimple pattern having an integrated drag area (DA) defined by the following formula:

[0069]

number

[0070] In the formula, C D (Re) was established under launch conditions of 182.0 mph ball speed, 10.0 degree launch angle, and 2,700 rpm spin rate, with a C of 14,500 ≤ DA ≤ 15,500, a Reynolds number of 240,000, and a spin ratio of 0.060. L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L ≦0.200.

[0071] Disclosed herein is a golf ball including at least a core, a casing layer, and a cover formed from urethane. The golf ball has a weight of 1.600 oz to 1.620 oz, a diameter of 1.680 in to 1.700 in, a compression of at least 80 ft / s, a coefficient of restitution of at least 0.800, and an initial velocity of at least 250 ft / s. The core has a weight of at least 1.245 oz, a coefficient of restitution of at least 0.785, and a diameter of at least 1.525 in. The cover has a C of 0.230 or less with a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095 D ≤ 0.250, and 0.230 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100 D Drag coefficient (C) ≦0.250 D ) and lift coefficient (C L The dimple pattern includes a plurality of dimples arranged in a dimple pattern having an integrated drag area (DA) defined by the following equation:

[0072]

number

[0073] In the formula, C D (Re) is established at launch conditions of a golf ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate of 2,700 rpm, such that 14,500 ≤ DA ≤ 15,500. The lift coefficient is greater than or equal to 0.115 at a Reynolds number of 240,000 and a spin ratio of 0.060. At a Reynolds number of 225,000 and a spin ratio of 0.070, the drag and lift coefficients are greater than or equal to 1.400 ≤ C D / C L with a relationship of <2,000.

[0074] The dimple pattern has a surface coverage of 77.0% to 83.0% and a 0.0425 in 3 ~0.0575in 3 The dimple pattern may be comprised of 220 to 270 dimples with a surface coverage of 80.0% to 85.0% and a dimple volume of 0.0380 in 3 ~0.0425in 3 The dimple pattern may be comprised of 340 to 390 dimples with a dimple volume of 0.0350 in. The dimple pattern may be comprised of 280 to 420 dimples with a surface coverage of 70.0% to 81.0% and a maximum dimple diameter difference of at least 0.040 in. The dimple pattern may be comprised of 76.0% to 85.0% surface coverage and a maximum dimple diameter difference of at least 0.0350 in. 3 ~0.0440in 3 The dimple pattern may be comprised of 270 to 320 dimples with a surface coverage of 79.0% to 85.0% and a dimple volume of 0.0175 in 3 ~0.0375in 3 The dimple pattern may be comprised of 490 to 620 dimples with a surface coverage of 77.0% to 86.0% and a dimple volume of 0.0225 in 3 ~0.0450in 3The golf ball may be comprised of 390 to 490 dimples, with a dimple volume of 0.805. The golf ball may have a compression of at least 90. The golf ball may have a compression of at least 95. The golf ball may have a coefficient of restitution of at least 0.805. The golf ball may have a coefficient of restitution of at least 0.810. The core may have a weight of at least 1.260 ounces. The core may have a weight of at least 1.280 ounces. The core may have a diameter of at least 1.545 inches. The core may have a coefficient of restitution of at least 0.790. The core may have a coefficient of restitution of at least 0.795. The core may have a coefficient of restitution of at least 0.800. The lift coefficient may be 0.200 or less at a Reynolds number of 185,000 and a spin ratio of 0.105. The core may have a weight of at least 1.260 ounces, a coefficient of restitution of at least 0.790, and a diameter of at least 1.530 inches. The core may have a weight of at least 1.290 ounces, a coefficient of restitution of at least 0.795, and a diameter of at least 1.550 inches.

[0075] In one embodiment, 0.235≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, 0.235 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095 D ≤ 0.250, and 0.235 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100 D In another embodiment, 0.240≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, 0.240 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095 D ≤ 0.250, and 0.240 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100 D In another embodiment, 0.235≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.245, 0.235 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095 D≤ 0.245, and 0.235 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100 D In another embodiment, 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.245, 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095 D ≤ 0.245, and 0.230 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100 D ≦0.245.

[0076] In one embodiment, the integrated drag area is defined as 14,750≦DA≦15,500. In one embodiment, the integrated drag area is defined as 15,000≦DA≦15,500. In another embodiment, the integrated drag area is defined as 14,500≦DA≦15,250. In another embodiment, the integrated drag area is defined as 14,500≦DA≦15,000.

[0077] Additional features and aspects of the present disclosure are described in further detail herein.

[0078] Further features and advantages of the present disclosure may become apparent from the following detailed description provided in conjunction with the drawings described below. [Brief explanation of the drawings]

[0079] [Figure 1A] FIG. 1A is a diagram of the airflow over a golf ball in flight. [Figure 1B] FIG. 1B is a diagram of the forces acting on a golf ball in flight. [Figure 2] FIG. 2 is a schematic diagram illustrating a method for measuring dimple diameter and other dimple characteristics. [Figure 3A] 3A and 3B show exemplary drag values ​​for one exemplary dimple pattern. [Figure 3B] 3A and 3B illustrate an exemplary drag coefficient profile according to one exemplary dimple pattern. [Figure 4A] 4A and 4B illustrate an exemplary integrated drag area profile according to one exemplary dimple pattern. [Figure 4B] 4A and 4B illustrate an exemplary integrated drag area profile according to one exemplary dimple pattern. [Figure 5A] 5A and 5B illustrate a first conventional dimple pattern according to an embodiment of the present disclosure. [Figure 5B] 5A and 5B illustrate a first conventional dimple pattern according to an embodiment of the present disclosure. [Figure 6A] 6A and 6B illustrate a second conventional dimple pattern according to an embodiment of the present disclosure. [Figure 6B] 6A and 6B illustrate a second conventional dimple pattern according to an embodiment of the present disclosure. [Figure 7A] 7A and 7B illustrate a third conventional dimple pattern according to an embodiment of the present disclosure. [Figure 7B] 7A and 7B illustrate a third conventional dimple pattern according to an embodiment of the present disclosure. [Figure 8A] 8A and 8B illustrate a fourth conventional dimple pattern according to an embodiment of the present disclosure. [Figure 8B] 8A and 8B illustrate a fourth conventional dimple pattern according to an embodiment of the present disclosure. [Figure 9A] 9A and 9B illustrate a fifth conventional dimple pattern according to an embodiment of the present disclosure. [Figure 9B] 9A and 9B illustrate a fifth conventional dimple pattern according to an embodiment of the present disclosure. [Figure 10A] 10A and 10B illustrate a first exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 10B] 10A and 10B illustrate a first exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 11A]11A and 11B illustrate a second exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 11B] 11A and 11B illustrate a second exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 12A] 12A and 12B illustrate a third exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 12B] 12A and 12B illustrate a third exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 13A] 13A and 13B illustrate a fourth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 13B] 13A and 13B illustrate a fourth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 14A] 14A and 14B illustrate a fifth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 14B] 14A and 14B illustrate a fifth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 15A] 15A and 15B illustrate a sixth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 15B] 15A and 15B illustrate a sixth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 16A] 16A and 16B illustrate a seventh exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 16B] 16A and 16B illustrate a seventh exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 17A] 17A and 17B illustrate an eighth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 17B] 17A and 17B illustrate an eighth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 18A]18A and 18B show a ninth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 18B] 18A and 18B show a ninth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 19A] 19A and 19B show a tenth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 19B] 19A and 19B show a tenth exemplary dimple pattern according to an embodiment of the present disclosure. [Figure 20] FIG. 20 illustrates typical golf ball flight patterns for several exemplary golf balls and conventional golf balls. [Figure 21] FIG. 21 shows plots of golf ball coefficient of restitution and golf ball compression for exemplary golf ball constructions. [Figure 22A] FIG. 22A is a cross-sectional view of a two-piece golf ball according to an embodiment of the present disclosure. [Figure 22B] FIG. 22B is a cross-sectional view of a three-piece golf ball according to an embodiment of the present disclosure. [Figure 22C] FIG. 22C is a cross-sectional view of a four-piece golf ball according to an embodiment of the present disclosure. [Figure 22D] FIG. 22D is a cross-sectional view of a five-piece golf ball according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0080] Dimples on a golf ball are used to adjust or modify the aerodynamic characteristics of the golf ball; therefore, dimple patterns, shapes, volumes, and various other dimple features or characteristics can be designed to modify the overall flight of the golf ball. Determining the specific dimple arrangement and dimple shape that results in the desired aerodynamic characteristics can involve direct measurement of the aerodynamic characteristics. These aerodynamic characteristics define the forces acting on the golf ball throughout its flight. The term "dimple" can include any texturing on the surface of a golf ball, such as depressions and protrusions.

[0081] Aerodynamic forces acting on a golf ball are typically decomposed into orthogonal components: lift and drag. Lift is defined as the aerodynamic force component acting perpendicular to the flight path. It results from pressure differences generated by the distortion of the airflow resulting from the backspin of the golf ball. As shown in Figure 1A, boundary layers form at the ball's stagnation point B and then grow and separate at points S1 and S2. Due to the backspin of the ball, the top of the ball moves in the direction of the airflow, which delays boundary layer separation. In contrast, the bottom of the ball moves against the direction of the airflow, thus hastening boundary layer separation at the bottom of the ball. Therefore, the boundary layer separation location S1 at the top of the ball is much further back than the boundary layer separation location S2 at the bottom of the ball. This asymmetric separation creates a downward deflection in the flow pattern, requiring the air above the ball to move faster and therefore have lower pressure than the air below the ball.

[0082] Drag is defined as the aerodynamic force component acting parallel to the direction of flight of a golf ball. As the ball moves through the air, the air surrounding the ball has different velocities and therefore different pressures. The air exerts maximum pressure at stagnation point B in front of the ball, as shown in Figure 1A. The air then flows backward over the sides of the golf ball, separating from the surface of the golf ball at points S1 and S2, leaving behind a large turbulent region of low pressure, or wake. The difference between the high pressure in front of the golf ball and the low pressure in the wake behind the golf ball reduces its velocity and acts as the primary source of drag on the golf ball.

[0083] The aerodynamic forces acting on a ball in flight are set forth in Equation 1 and illustrated in FIG. 1B.

[0084] F=F L +F D +F G (Formula 1)

[0085] Where F = total force acting on the ball, F L = lift, F D = drag force, and F G = Gravity.

[0086] Lift (F L ) is the component of the aerodynamic force acting in the direction defined by the cross product of the spin vector and the velocity vector. Drag (F D ) is the component of the aerodynamic force acting in the direction opposite to the velocity vector. The lift and drag forces in Equation 1 are calculated using Equations 2 and 3, respectively.

[0087] F L =0.5C L ρAV 2 (Formula 2) F D =0.5C D ρAV 2 (Formula 3)

[0088] Where ρ = air density (slugs / ft 3 ), A = projected area of ​​the ball (ft 2 )((π / 4)D 2), D = golf ball diameter (feet), V = ball speed (feet / second), C L = dimensionless lift coefficient, and C D = dimensionless drag coefficient.

[0089] Lift and drag coefficients are used to quantify the forces imparted to a golf ball during flight and depend on air density, air viscosity, ball speed, and spin rate. The influence of all these parameters can be captured by two dimensionless parameters: spin ratio (SR) and Reynolds number (Re). Spin ratio is the ball's rotational face speed divided by the ball velocity. The Reynolds number quantifies the ratio of inertial and viscous forces acting on a golf ball moving through the air. SR and Re are calculated using Equation 4 and Equation 5 below.

[0090] SR=ω(D / 2) / V (Equation 4) Re=DVρ / μ (Equation 5)

[0091] Where ω = ball rotational speed in radians / second (2π(RPS)), RPS = ball rotational speed in revolutions / second, V = ball speed in feet / second, D = ball diameter in feet, ρ = air density in slugs / ft 3 ), and μ = absolute viscosity of air (lb / ft 2 - seconds).

[0092] There are many suitable methods for determining lift and drag coefficients for a given range of spin rates and Reynolds numbers, including the use of indoor test ranges employing ballistic screen technology. U.S. Patent No. 5,682,230 (the disclosure of which is incorporated herein by reference in its entirety) teaches the use of a series of ballistic screens to obtain lift and drag coefficients. U.S. Patent Nos. 6,186,002, 6,285,445, and 6,729,976 (also incorporated herein by reference in their entireties) disclose methods for determining lift and drag coefficients for a given range of speeds and spin rates using an indoor test range, and L and C DThe value of ρ is related to the spin rate and Reynolds number of each shot. Those skilled in the art of golf ball aerodynamic testing can readily determine the lift and drag coefficients through the use of an indoor test range.

[0093] Those skilled in the art will recognize that desired aerodynamic performance, as characterized by lift and drag coefficients, can be achieved by combining various elements of dimple pattern characterization, including, but not limited to, total dimple count, total surface coverage, total dimple volume, number of different dimple diameters, average dimple diameter, range of dimple diameters, dimple planform, dimple profile, and underlying pattern shapes to generate exemplary dimple pattern categories.

[0094] According to one aspect, the aerodynamic performance parameters and features disclosed herein can provide a golf ball with a relatively increased drag profile compared to modern, high-performance dimple patterns. In one aspect, the aerodynamic performance parameters and features of the present disclosure can be considered relatively "high-drag" compared to modern, high-performance dimple patterns. As a result, a golf ball exhibiting the disclosed aerodynamic performance parameters and features disclosed herein can have a relatively shorter carry distance compared to a golf ball with a modern, high-performance dimple pattern, assuming all other factors, such as golf ball construction parameters, are held constant.

[0095] Those skilled in the art will appreciate that the aerodynamic performance parameters and features of the present disclosure may be matched or paired with various types of golf ball structures, including modern high performance ball structures, as well as other golf ball structures that may be considered relatively slower or faster structures compared to modern high performance ball structures.

[0096] In one aspect, the aerodynamic performance parameters and characteristics of the present disclosure can be matched or paired with a relatively fast ball construction, such as a golf ball having a relatively high COR and / or initial velocity compared to modern high performance balls. In another aspect, the aerodynamic performance parameters and characteristics of the present disclosure can be matched or paired with a modern high performance golf ball construction, i.e., a golf ball exhibiting a COR and / or initial velocity typical of the majority of modern high performance golf balls. Those skilled in the art will understand, based on the present disclosure, that the aerodynamic performance parameters and characteristics disclosed herein can also be matched or paired with a relatively slower golf ball construction.

[0097] Drag coefficient To calculate the drag force acting on the ball at a given moment in flight, we use the drag coefficient (C D ) must be determined, and for a golf ball of a given diameter moving at a given speed through air of a given density, a higher drag coefficient indicates a greater drag force acting on the golf ball. Therefore, at a given Reynolds number and spin ratio, C D Identifying a higher value of C may represent a dimple configuration that induces a greater overall magnitude of drag. D A pattern with an overall high value of σ will likely have a shorter flight distance.

[0098] There are many suitable methods for determining lift and drag coefficients for a given range of spin rates and Reynolds numbers, including the use of indoor test ranges. U.S. Patent Nos. 6,186,002 and 6,285,445 (each incorporated herein by reference in its entirety) disclose methods for determining lift and drag coefficients for a given range of speeds and spin rates using an indoor test range, wherein C L and C D The value of ρ is related to the spin rate and Reynolds number of each shot. Those skilled in the art of golf ball aerodynamic testing can readily determine the lift and drag coefficients through the use of an indoor test range.

[0099] In particular, a subset of golf balls, such as at least six golf balls or at least twelve golf balls, are tested at an indoor test range (ITR) in a pole-over-pole orientation and a pole-horizontal orientation to provide at least six sets of flight data for each orientation, and the drag and lift coefficients for each orientation are determined based on the following 15 conditions shown in Table 1:

[0100] [Table 1]

[0101] At each orientation, the median drag coefficient and median lift coefficient at each condition are used in conjunction with the methodology established by the United States Golf Association for overall distance and symmetry conformance testing to predict the aerodynamic performance of the golf ball. Specifically, the lift and drag coefficients are calculated individually for each ball at each orientation at 15 conditions using the following equations, where a1-a3, b1-b3, c1-c4, and d1-d2 are determined using least squares regression in accordance with USGA published documents, including the Indoor Test Range (ITR) Technical Description and Operations Manual and associated appendices:

[0102]

number

[0103]

number

[0104] The results for each individual ball were then used to determine the median lift and drag coefficients for the 15 test conditions, which represent the ball with the median aerodynamic performance, referred to herein as the median ball or median golf ball.

[0105] As shown in Figures 3A and 3B, drag coefficients at corresponding Reynolds numbers throughout a predicted flight are illustrated for an exemplary golf ball having a relatively high drag coefficient profile according to the present disclosure. More specifically, Figure 3A illustrates the drag coefficient of a median golf ball tested using a pole-over-pole orientation, and Figure 3B illustrates the drag coefficient of a median golf ball tested using a pole-horizontal orientation. While not specifically illustrated, those skilled in the art will understand that all of the preferred embodiments disclosed herein have associated drag coefficient profiles similar to those in Figures 3A and 3B, and that the associated drag coefficient profiles may be higher or lower than those illustrated in Figures 3A and 3B. Those skilled in the art will also understand that a drag coefficient profile similar to Figure 3A may be associated with a pole-horizontal orientation, and that the drag coefficient profile of Figure 3B may be associated with a pole-over-pole orientation. When presented as a single value herein, the drag coefficient is the average of the drag coefficient of the median ball in the pole-over-pole orientation and the drag coefficient of the median ball in the pole-horizontal orientation. Similarly, when presented herein as a single value, the lift coefficient is the average of the lift coefficient of the median ball in a pole-over-pole orientation and the lift coefficient of the median ball in a pole-horizontal orientation.

[0106] Integrated drag area The drag area characterizes the aerodynamic effect of the dimple pattern over approximately the first two seconds of flight, when aerodynamic forces are most pronounced.

[0107] A lower drag area indicates a more efficient aerodynamic pattern and may represent a longer predicted distance using the disclosed methodology at a specified launch condition. Similarly, a pattern with a higher drag area may have a shorter predicted flight distance under the contemplated methodology.

[0108] Once the median ball lift and drag coefficients were established for the golf ball dimple pattern under analysis, a predicted golf ball trajectory was then calculated using USGA calculation procedures for each of the pole-over-pole and pole-horizontal orientations using a golf ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate of 2,700 rpm as the initial launch inputs (i.e., initial or launch conditions), and the Reynolds number and drag coefficient from the simulation for the median ball were retained and were determined to satisfy the functional relationship C D (Re). Whenever referred to herein, the integrated drag area is established using the golf ball speed, launch angle, and spin rate disclosed above.

[0109] Pole Over Pole (DA PP ) and pole horizontal (DA PH ) orientation drag area is given by the following formula:

[0110]

number

[0111]

number

[0112] The average drag area is given by the following formula:

[0113]

number

[0114] When presented herein as a single value, it is understood to refer to the average drag area DA.

[0115] The integral is calculated by Riemann summation using at least 8 trapezoidal divisions. Those skilled in the art will appreciate that alternative division shapes may be used in conjunction with Riemann summation or other summations.

[0116] As shown in Figures 4A and 4B, integrated drag areas are illustrated for exemplary golf balls having relatively high drag coefficient profiles according to the present disclosure. The integrated drag areas illustrated in Figures 4A and 4B can be measured using a ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate or rotation rate of 2,700 rpm. More specifically, Figure 4A illustrates the integrated drag area of ​​a golf ball tested using a pole-over-pole orientation, and Figure 4B illustrates the integrated drag area of ​​a golf ball tested using a pole-horizontal orientation. While not specifically illustrated, those skilled in the art will understand that all of the preferred embodiments disclosed herein have associated integrated drag profiles similar to those illustrated in Figures 4A and 4B, and that the associated integrated drag profiles may be higher or lower than those illustrated in Figures 4A and 4B. Those skilled in the art will also understand that an integrated drag area diagram similar to that of Figure 4A may be associated with a pole-horizontal orientation, and a diagram similar to that of Figure 4B may be associated with a pole-over-pole orientation.

[0117] Golf ball flight window In one embodiment, a dimple pattern on a golf ball may be configured to provide an associated flight window, which in some embodiments may be related to or dependent on the drag and / or lift coefficients associated with the dimple pattern. For example, a relatively low drag to lift coefficient ratio (C D / C L ) generally corresponds to a higher flying ball, while providing a relatively high drag coefficient to lift coefficient ratio (C D / C L ) generally corresponds to a lower flying ball. Table 2 below shows the ratio of the drag coefficient to the lift coefficient (C D / C L ) are provided.

[0118] As used herein, the term drag coefficient may correspond to the median drag coefficient, and the term lift coefficient may correspond to the median lift coefficient measured for a sample number of golf balls as detailed above.

[0119] In one aspect, the ratio of the recited drag coefficient to the lift coefficient (C D / C L ) provides ranges for exemplary golf balls having relatively fast golf ball constructions or modern high performance golf ball constructions. For example, the following values ​​may correspond to a golf ball having a COR of at least 0.800, and / or an initial velocity of at least 250 feet per second:

[0120] As used herein, C D / C L Any listed values ​​for refer to the median drag and lift coefficients at a Reynolds number of 225,000 and a spin ratio of 0.070.

[0121] [Table 2]

[0122] In one embodiment, the target range for golf balls in the "high" flight window (i.e., 1.400≦C D / C L <1.600) may correspond to a relatively high peak altitude of the golf ball.

[0123] In one embodiment, the target range for golf balls in the "medium" flight window (i.e., 1.600≦C D / C L <1.800) may correspond to a relatively moderate peak altitude of the golf ball.

[0124] In one embodiment, the target range for golf balls in the "low" flight window (i.e., 1.800≦C D / C L ≦2,000) may correspond to a relatively low peak altitude of the golf ball.

[0125] In one embodiment, 1.600≦C D / C L A golf ball may be provided that exhibits a drag coefficient and a lift coefficient having a relationship of 1.800 or less. D / C L In another embodiment, a golf ball may be provided that exhibits a drag coefficient and a lift coefficient having the relationship: D / C L A golf ball may be provided that exhibits a drag coefficient and a lift coefficient having a relationship of ≦2,000. D / C L A golf ball may be provided that exhibits a drag coefficient and a lift coefficient having a relationship of ≧2,000. D / C L A golf ball may be provided that exhibits a drag coefficient and a lift coefficient having a relationship of 1.400≦C D / C L In another embodiment, a golf ball may be provided that exhibits a drag coefficient and a lift coefficient having the following relationship: D / C L A golf ball can be provided that exhibits a drag coefficient and a lift coefficient having the following relationship:

[0126] In one embodiment, a golf ball is disclosed that includes at least a core and a cover. The golf ball may include at least one additional layer in addition to the core and cover. In one embodiment, the golf ball may include a multi-layer core, a multi-layer cover, and / or a multi-layer casing / intermediate layer.

[0127] In one embodiment, the golf ball may have a weight between 1.600 ounces and 1.620 ounces. Those skilled in the art will appreciate that the weight of a golf ball may vary. For example, in one embodiment, the weight may be less than 1.600 ounces or the weight may be greater than 1.620 ounces.

[0128] In one embodiment, the golf balls may have a diameter between 1.680 inches and 1.700 inches. One skilled in the art will appreciate that the size or diameter of a golf ball may vary. For example, the diameter may be less than 1.680 inches or the diameter may be greater than 1.700 inches.

[0129] The cover provides a range of drag coefficients (C D ) and lift coefficient (C L In one embodiment, the drag coefficient is 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, and the drag coefficient is 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≤ 0.250, and the drag coefficient is 0.230 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100. D ≦0.250.

[0130] In one embodiment, the drag coefficient is 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.240, and the drag coefficient is 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≤ 0.240, and the drag coefficient is 0.230 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100. D ≦0.240.

[0131] In one embodiment, the drag coefficient is 0.235≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, and the drag coefficient is 0.235 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≤ 0.250, and the drag coefficient is 0.235 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100. D ≦0.250.

[0132] In one embodiment, the drag coefficient is 0.240≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, and the drag coefficient is 0.240 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≤ 0.250, and the drag coefficient is 0.240 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100. D ≦0.250.

[0133] In one embodiment, the drag coefficient is 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D and the drag coefficient is 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D and the drag coefficient is 0.230 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100. D It has a range of

[0134] In one embodiment, the drag coefficient is 0.235≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.245, and the drag coefficient is 0.235 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≤ 0.245, and the drag coefficient is 0.235 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100. D ≦0.245.

[0135] In one embodiment, the drag coefficient is 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.245, and the drag coefficient is 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≦0.245.

[0136] In one embodiment, the drag coefficient is 0.235≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D≤ 0.245, and the drag coefficient is 0.235 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095. D ≦0.245.

[0137] In terms of lift coefficient, the golf ball has a C at a Reynolds number of 240,000 and a spin ratio of 0.060. L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.200.

[0138] In one embodiment, the golf ball has a C L ≥ 0.120, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.200.

[0139] In one embodiment, the golf ball has a C L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.195.

[0140] In one embodiment, the golf ball has a C L ≥ 0.120, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.195.

[0141] In one embodiment, the golf ball has a C L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.190.

[0142] In one embodiment, the golf ball has a C L ≥ 0.120, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.190.

[0143] In one embodiment, the golf ball has a C L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.185.

[0144] In one embodiment, the golf ball has a C L ≥ 0.120, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.185.

[0145] In one embodiment, the golf ball has a C L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.180.

[0146] In one embodiment, the golf ball has a C L ≥ 0.120, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.180.

[0147] In one embodiment, the golf ball has a C L ≥ 0.125, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.200.

[0148] In one embodiment, the golf ball has a C L ≥ 0.125, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.185.

[0149] In one embodiment, the golf ball has a C L ≥ 0.130, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.200.

[0150] In one embodiment, the golf ball has a C L ≥ 0.130, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L It may have a lift coefficient that is ≦0.185.

[0151] In one particular embodiment, the drag coefficient and the lift coefficient may have a particular relationship. This particular relationship may be associated with or define a flight window of the golf ball. In one embodiment, the drag coefficient and the lift coefficient are such that 1.600≦C D / C L <1.800. In another embodiment, the drag coefficient and lift coefficient have a relationship of 1.800≦C D / C L In yet another aspect, the drag and lift coefficients may have the relationship: C D / C L In yet another embodiment, the drag coefficient and lift coefficient may have a relationship of C D / C L In a further embodiment, the drag coefficient and lift coefficient may have the relationship 1.400≦C D / C L In a further aspect, the drag coefficient and lift coefficient may have the relationship 1.800 > C D / C L The relationship may be:

[0152] The present disclosure provides various example patterns that exhibit the aerodynamic performance attributes or characteristics of the present disclosure.

[0153] In one embodiment, the dimple pattern has a surface coverage of 79.0% to 81.0% and a surface area of ​​0.0400 in 3 ~0.0500in 3 The golf ball may be made up of 250 to 270 dimples having a dimple volume of 1000 .mu.m.

[0154] In another embodiment, the dimple pattern has a surface coverage of 80.0% to 84.0% and a surface area of ​​0.0355 in 3 ~0.0435in 3 The golf ball may be made up of 340 to 360 dimples having a dimple volume of 1000 dimples.

[0155] In another embodiment, the dimple pattern has a surface coverage of 77.0% to 80.0% and a surface area of ​​0.0400 in 3 ~0.0500in 3 The golf ball may be composed of 215 to 240 dimples having a dimple volume of 1000 .mu.m.

[0156] In another embodiment, the dimple pattern has a surface coverage of 76.0% to 79.0% and a surface area of ​​0.0400 in 3 ~0.0500in 3 It consists of 240 to 260 dimples with a dimple volume of .

[0157] In another embodiment, the dimple pattern has a surface coverage of 79.0% to 81.0% and a surface area of ​​0.0500 in 3 ~0.0600in 3 It consists of 250 to 270 dimples with a dimple volume of .

[0158] In another embodiment, the dimple pattern has a surface coverage of 77.0% to 80.0% and a surface area of ​​0.0375 in 3 ~0.0475in 3It consists of 235 to 255 dimples with a dimple volume of .

[0159] Various other example dimple patterns and / or dimple parameters are provided herein.

[0160] As disclosed herein, golf balls exhibiting the aerodynamic performance attributes or characteristics of the present disclosure may be associated with golf balls having various ball construction parameters. Golf ball constructions may be categorized or characterized generally according to particular performance characteristics, such as compression, coefficient of restitution, initial velocity, etc. Each of these parameters is described in more detail herein.

[0161] In one embodiment, the golf ball may have a compression of at least 80. In one embodiment, the golf ball may have a compression of at least 90. In another embodiment, the golf ball may have a compression of at least 95. In another embodiment, the sportsball may have a compression of less than 90. In another embodiment, the sportsball may have a compression of 85 or less. Those skilled in the art will understand that compression can vary.

[0162] In one embodiment, the golf ball has a coefficient of restitution of at least 0.800. In another embodiment, the golf ball may have a coefficient of restitution of at least 0.805. In another embodiment, the golf ball may have a coefficient of restitution of at least 0.810. Those skilled in the art will appreciate that the coefficient of restitution may vary.

[0163] In one embodiment, the golf ball may have an initial velocity of at least 250 feet / second. In another embodiment, the initial velocity may be at least 252 feet / second. In another embodiment, the initial velocity may be at least 245 feet / second. Those skilled in the art will appreciate that the initial velocity may vary.

[0164] In one embodiment, the golf ball may have a dimple pattern with a combined drag area (DA) defined by:

[0165]

number

[0166] In the formula, C D (Re) is established at launch conditions of a golf ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate of 2,700 rpm. In one embodiment, the integrated drag area may be defined as 14,500≦DA≦15,500.

[0167] In one embodiment, the integrated drag area may be defined as 14,750≦DA≦15,250.

[0168] In one embodiment, the integrated drag area may be defined as 14,500≦DA.

[0169] In one embodiment, the integrated drag area may be defined as 14,750≦DA.

[0170] In one embodiment, the integrated drag area may be defined as 15,000≦DA≦15,500.

[0171] In one embodiment, the integrated drag area may be defined as 15,250≦DA≦15,500.

[0172] In one embodiment, the integrated drag area may be defined as 15,000 ≦DA.

[0173] In one embodiment, the integrated drag area may be defined as 14,750≦DA≦15,500.

[0174] In one embodiment, the integrated drag area may be defined as 14,500≦DA≦15,250.

[0175] In one embodiment, the integrated drag area may be defined as 14,500≦DA≦15,000.

[0176] In yet another aspect, disclosed herein is a golf ball comprising at least a core and a cover. The golf ball can have a weight of 1.600 ounces to 1.620 ounces and a diameter of 1.680 inches to 1.700 inches. The golf ball can have a coefficient of restitution of at least 0.800 and an initial velocity of at least 250 feet per second. The cover can have a drag coefficient (C D ) and lift coefficient (C L ) wherein 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070 D ≤ 0.250, 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095 D ≤ 0.250, and 0.230 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100 D ≤ 0.250, and C at a Reynolds number of 240,000 and a spin ratio of 0.060 L C ≥ 0.115, at a Reynolds number of 185,000 and a spin ratio of 0.105 L ≦0.200 and the dimple pattern has an integrated drag area (DA) defined by the following formula:

[0177]

number

[0178] In the formula, C D (Re) is established under launch conditions of a golf ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate of 2,700 rpm, and 14,500≦DA≦15,500.

[0179] In yet another embodiment, a golf ball is provided having a weight of 1.600 ounces to 1.620 ounces and a diameter of 1.680 inches to 1.700 inches, wherein the cover of the golf ball has a coefficient of drag (CD ), lift coefficient (C L ), and a plurality of dimples arranged in a dimple pattern having an integrated drag area (DA) defined by the following formula:

[0180]

number

[0181] In the formula, C D (Re) was established under launch conditions of 182.0 mph ball speed, 10.0 degree launch angle, and 2,700 rpm spin rate, with a C of 14,500 ≤ DA ≤ 15,500, a Reynolds number of 240,000, and a spin ratio of 0.060. L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L ≦0.200.

[0182] Conventional Example The following non-limiting examples illustrate conventional embodiments, which are provided for purposes of comparison to the preferred embodiments.

[0183] Conventional example 1 In a first conventional example, a dimple pattern is provided, generally referred to herein as the first conventional dimple pattern. More specifically, the first conventional example includes a dimple pattern including 336 dimples in an octahedral pattern divided into eight concentric linear rows. In one embodiment, each dimple in the first conventional dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the first conventional dimple pattern has a circular planar shape. Table 3 discloses relevant parameters of dimples associated with the first conventional dimple pattern, as well as their associated aerodynamic characteristics. Figures 5A and 5B illustrate an exemplary pattern including the first conventional dimple pattern.

[0184] [Table 3]

[0185] Conventional example 2 In a second conventional example, a dimple pattern, generally referred to herein as the second conventional dimple pattern, is provided. In one embodiment, each dimple in the second conventional dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the second conventional dimple pattern has a circular planar shape. Table 4 discloses relevant parameters of the dimples associated with the second conventional dimple pattern, as well as their associated aerodynamic characteristics. Figures 6A and 6B illustrate exemplary patterns comprising the second conventional dimple pattern.

[0186] [Table 4]

[0187] Conventional example 3 In a third conventional example, a dimple pattern is provided, generally referred to herein as the third conventional dimple pattern. In one embodiment, each dimple in the third conventional dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the third conventional dimple pattern has a circular planar shape. Table 5 discloses relevant parameters of the dimples associated with the third conventional dimple pattern, as well as their associated aerodynamic characteristics. Figures 7A and 7B illustrate example patterns comprising the third conventional dimple pattern.

[0188] [Table 5]

[0189] Conventional example 4 In a fourth conventional example, a dimple pattern is provided, generally referred to herein as the fourth conventional dimple pattern. In one embodiment, each dimple in the fourth conventional dimple pattern has a catenary cross-sectional profile. In one embodiment, each dimple in the fourth conventional dimple pattern has a circular planar shape. Table 6 discloses relevant parameters of the dimples associated with the fourth conventional dimple pattern, as well as their associated aerodynamic characteristics. Figures 8A and 8B illustrate exemplary patterns comprising the fourth conventional dimple pattern.

[0190] [Table 6]

[0191] Conventional example 5 In a fifth conventional example, a dimple pattern is provided, generally referred to herein as the fifth conventional dimple pattern. In one embodiment, each dimple in the fifth conventional dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the fifth conventional dimple pattern has a circular planar shape. Table 7 discloses relevant parameters of the dimples associated with the fourth conventional dimple pattern, as well as their associated aerodynamic characteristics. Figures 9A and 9B illustrate exemplary patterns including the fifth conventional dimple pattern.

[0192] [Table 7]

[0193] Preferred Embodiment The preferred embodiments listed below provide specific aerodynamic performance characteristics or properties associated with a particular set of dimple pattern parameters. Those skilled in the art will appreciate that various other dimple patterns may be provided that would also have specific aerodynamic performance characteristics or properties. Unless otherwise specified, the dimple profiles are spherical and the dimple planform is circular for each of the dimple patterns disclosed below. Those skilled in the art will appreciate that non-spherical dimple profiles and / or non-circular dimple planforms may be used.

[0194] Preferred Example 1 In one embodiment, a golf ball according to preferred embodiment 1 has a first dimple pattern. Table 8 discloses relevant parameters of dimples associated with the first dimple pattern and related aerodynamic characteristics of the first dimple pattern. Figures 10A and 10B illustrate example patterns comprising the first dimple pattern. In one embodiment, each dimple in the first dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the first dimple pattern has a circular planar shape.

[0195] [Table 8]

[0196] Preferred Example 2 In one embodiment, a golf ball according to preferred embodiment 2 has a second dimple pattern. Table 9 discloses relevant parameters of dimples associated with the second dimple pattern, as well as related aerodynamic characteristics of the second dimple pattern. Figures 11A and 11B illustrate example patterns comprising the second dimple pattern. In one embodiment, each dimple in the second dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the second dimple pattern has a circular planar shape.

[0197] [Table 9]

[0198] Preferred Embodiment 3 In one embodiment, a golf ball according to preferred embodiment 3 has a third dimple pattern. Table 10 discloses relevant parameters of dimples associated with the third dimple pattern, as well as related aerodynamic characteristics of the third dimple pattern. Figures 12A and 12B illustrate example patterns including the third dimple pattern. In one embodiment, each dimple in the third dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the third dimple pattern has a circular planar shape.

[0199] [Table 10]

[0200] Preferred Embodiment 4 In one embodiment, a golf ball according to preferred embodiment 4 has a fourth dimple pattern. Table 11 discloses relevant parameters of dimples associated with the fourth dimple pattern, as well as related aerodynamic characteristics of the fourth dimple pattern. Figures 13A and 13B illustrate example patterns comprising the fourth dimple pattern. In one embodiment, each dimple in the fourth dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the fourth dimple pattern has a circular planar shape.

[0201] [Table 11]

[0202] Preferred Embodiment 5 In one embodiment, a golf ball according to preferred embodiment 5 has a fifth dimple pattern. Table 12 discloses relevant parameters of the dimples associated with the fifth dimple pattern, as well as the associated aerodynamic characteristics of the fifth dimple pattern. Figures 14A and 14B illustrate an example pattern comprising the fifth dimple pattern. In one embodiment, each dimple in the fifth dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the fifth dimple pattern has a circular planar shape.

[0203] [Table 12]

[0204] Preferred Embodiment 6 In one embodiment, a golf ball according to preferred embodiment 6 has a sixth dimple pattern. Table 13 discloses relevant parameters of dimples associated with the sixth dimple pattern, as well as the associated aerodynamic characteristics of the sixth dimple pattern. Figures 15A and 15B illustrate exemplary patterns including the sixth dimple pattern. In one embodiment, each dimple in the sixth dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the sixth dimple pattern has a circular planar shape.

[0205] [Table 13]

[0206] Preferred Embodiment 7 In one embodiment, a golf ball according to preferred embodiment 7 has a seventh dimple pattern. Table 14 discloses relevant parameters of the dimples associated with the seventh dimple pattern, as well as the associated aerodynamic characteristics of the seventh dimple pattern. Figures 16A and 16B illustrate an example pattern comprising the seventh dimple pattern. In one embodiment, each dimple in the seventh dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the seventh dimple pattern has a circular planar shape.

[0207] [Table 14]

[0208] Preferred Embodiment 8 In one embodiment, a golf ball according to preferred embodiment 8 has an eighth dimple pattern. Table 15 discloses relevant parameters of the dimples associated with the eighth dimple pattern, as well as the associated aerodynamic characteristics of the eighth dimple pattern. Figures 17A and 17B illustrate an example pattern comprising the eighth dimple pattern. In one embodiment, each dimple in the eighth dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the eighth dimple pattern has a circular planar shape.

[0209] [Table 15]

[0210] Preferred Embodiment 9 In one embodiment, a golf ball according to preferred embodiment 9 has a ninth dimple pattern. Table 16 discloses relevant parameters of the dimples associated with the ninth dimple pattern, as well as the associated aerodynamic characteristics of the ninth dimple pattern. Figures 18A and 18B illustrate example patterns including the ninth dimple pattern. In one embodiment, each dimple in the ninth dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the ninth dimple pattern has a circular planar shape.

[0211] [Table 16]

[0212] Preferred Embodiment 10 In one embodiment, a golf ball according to preferred embodiment 10 has a tenth dimple pattern. Table 17 discloses relevant parameters of the dimples associated with the tenth dimple pattern, as well as the associated aerodynamic characteristics of the tenth dimple pattern. Figures 19A and 19B illustrate example patterns comprising the tenth dimple pattern. In one embodiment, each dimple in the tenth dimple pattern has a spherical cross-sectional profile. In one embodiment, each dimple in the tenth dimple pattern has a circular planar shape.

[0213] [Table 17]

[0214] Golf ball dimple pattern characteristics The following provides exemplary dimple pattern characteristics such as total dimples or dimple quantity, total surface coverage by dimples, quantity of different dimple diameters, average dimple diameter, dimple volume, chord depth, edge angle, and dimple diameter difference.

[0215] Number of dimples Those skilled in the art will understand that the number of dimples on a golf ball having the aerodynamic properties disclosed herein can vary along with other dimple parameters. In one embodiment, an exemplary golf ball having the aerodynamic properties disclosed herein can include at least 100 dimples, or at least 200 dimples, or at least 300 dimples, or at least 400 dimples, or at least 500 dimples, or at least 600 dimples, or at least 700 dimples. In one embodiment, the total number of dimples on a golf ball having the aerodynamic properties disclosed herein can be 200-350 dimples, or 125-300 dimples, or 250-450 dimples, or 350-450 dimples, or 375-500 dimples. In one embodiment, the total number of dimples on a golf ball having the aerodynamic properties disclosed herein may be at least 300 dimples, or at least 350 dimples, or at least 400 dimples, or at least 450 dimples. In one embodiment, the total number of dimples on a golf ball having the aerodynamic properties disclosed herein may be 400 or fewer dimples, or 350 or fewer dimples, or 300 or fewer dimples, or 250 or fewer dimples.

[0216] Total Surface Coverage Those skilled in the art will understand that the total surface coverage of dimples on a golf ball having the aerodynamic properties disclosed herein can vary along with other specific dimple parameters. In one embodiment, the dimples may cover at least 60% of the total surface area of ​​the golf ball. In another embodiment, the dimples may cover at least 65% of the total surface area of ​​the golf ball. In another embodiment, the dimples may cover at least 70% of the total surface area of ​​the golf ball. In another embodiment, the dimples may cover at least 75% of the total surface area of ​​the golf ball. In another embodiment, the dimples may cover at least 80% of the total surface area of ​​the golf ball. In another embodiment, the dimples may cover less than 70% of the total surface area of ​​the ball. In another embodiment, the dimples may cover less than 75% of the total surface area of ​​the ball. In another embodiment, the dimples may cover less than 80% of the total surface area of ​​the ball. In another embodiment, the dimples may cover less than 65% of the total surface area of ​​the ball. In particular, the total surface area is calculated using the surface cap coverage of the dimples.

[0217] Dimple Diameter Golf balls having the aerodynamic properties disclosed herein can include dimples with a variety of dimple diameters, as would be understood by one skilled in the art. In one embodiment, the dimple diameters of a golf ball having the aerodynamic properties disclosed herein are: In one embodiment, a golf ball can include dimples with one dimple diameter, two dimple diameters, three dimple diameters, four dimple diameters, five dimple diameters, six dimple diameters, seven dimple diameters, eight dimple diameters, nine dimple diameters, ten dimple diameters, or more than ten dimple diameters.

[0218] The diameter of a dimple with a non-circular planar shape is its equivalent diameter d e which is calculated as follows:

[0219]

number

[0220] where A is the planform area of ​​the dimple. The term "planform area" refers to the area based on a plan view of the dimple planform, with the viewing plane perpendicular to the axis connecting the center of the golf ball and the center of the dimple. Diameter measurements are determined on a finished golf ball according to Figure 2. Measuring the diameter of a dimple can be difficult due to the generally unclear nature of the boundary separating the dimple from the undisturbed ground surface of the ball. Due to the influence of paint and / or the dimple design itself, the junction between the ground surface and the dimple may not be sharp and therefore unclear. This can make measuring the dimple diameter somewhat ambiguous. To solve this problem, the dimple diameter is measured on a finished ball according to the method shown in Figure 2. Figure 2 shows a half-profile 4 of the dimple, extending from the dimple centerline 1 to the ground surface outside the dimple 3. A phantom surface 2 of the ball is constructed above the dimple as a continuation of the ground surface 3. Next, a first tangent line T1 is constructed at a point on the dimple sidewall spaced 0.003 inches radially inward from phantom surface 2. T1 intersects phantom surface 2 at point P1, which defines the nominal dimple edge location. A second tangent line T2 is then constructed tangent to phantom surface 2 at P1. The edge angle is the angle between T1 and T2. The dimple diameter is the distance between P1 and its diametrically opposite equivalent point along the dimple perimeter. Alternatively, it is twice the distance between P1 and dimple centerline 1, measured in a direction perpendicular to centerline 1. The dimple depth is the distance from the phantom surface of the ball to the deepest point on the dimple, measured along the ball radius. The dimple volume is the space enclosed between phantom surface 2 and dimple surface 4 (extended along T1 until it intersects with the phantom surface). For purposes of this disclosure, dimples having substantially the same diameter, also referred to herein as "same diameter dimples," include dimples on finished balls having respective diameters that differ by less than 0.005 inches due to manufacturing variations. Similarly, those skilled in the art will understand that other dimple characteristics, such as dimple volume, may vary between finished balls due to manufacturing variations.

[0221] In one embodiment, the average dimple diameter of dimples on a golf ball having the aerodynamic properties disclosed herein may be between 0.100 inches and 0.200 inches. In one embodiment, the average dimple diameter may be between 0.050 inches and 0.300 inches. In one embodiment, the average dimple diameter may be between 0.120 inches and 0.250 inches. In one embodiment, the average dimple diameter is 0.175 inches or less. In one embodiment, the average dimple diameter is 0.200 inches or less. In one embodiment, the average dimple diameter is 0.250 inches or less. In one embodiment, the average dimple diameter is at least 0.125. In one embodiment, the average dimple diameter is at least 0.150 inches. In one embodiment, the average dimple diameter is at least 0.175 inches. In one embodiment, the average dimple diameter is at least 0.200 inches.

[0222] In one embodiment, the minimum dimple diameter may be 0.115 inches and the maximum dimple diameter may be 0.185 inches. In another embodiment, the minimum dimple diameter may be 0.100 inches and the maximum dimple diameter may be 0.185 inches. In another embodiment, the minimum dimple diameter may be 0.110 inches and the maximum dimple diameter may be 0.185 inches. In another embodiment, the minimum dimple diameter may be 0.100 inches and the maximum dimple diameter may be 0.200 inches. In another embodiment, the minimum dimple diameter may be 0.110 inches and the maximum dimple diameter may be 0.180 inches. In another embodiment, the minimum dimple diameter may be 0.128 inches and the maximum dimple diameter may be 0.195 inches. In another embodiment, the minimum dimple diameter may be 0.140 inches and the maximum dimple diameter may be 0.210 inches. In another embodiment, the minimum dimple diameter may be 0.110 inches and the maximum dimple diameter may be 0.180 inches. In another embodiment, the minimum dimple diameter may be 0.125 inches and the maximum dimple diameter may be 0.198 inches. In another embodiment, the minimum dimple diameter may be 0.110 inches and the maximum dimple diameter may be 0.195 inches. In another embodiment, the minimum dimple diameter may be 0.140 inches and the maximum dimple diameter may be 0.250 inches. In another embodiment, the minimum dimple diameter may be 0.177 inches and the maximum dimple diameter may be 0.255 inches. In another embodiment, the minimum dimple diameter may be 0.128 inches and the maximum dimple diameter may be 0.180 inches. In another embodiment, the minimum dimple diameter may be 0.125 inches and the maximum dimple diameter may be 0.170 inches. In another embodiment, the minimum dimple diameter may be 0.120 inches and the maximum dimple diameter may be 0.170 inches. In another embodiment, the minimum dimple diameter may be 0.100 inches and the maximum dimple diameter may be 0.200 inches.In another embodiment, the minimum dimple diameter may be 0.100 inches and the maximum dimple diameter may be 0.210 inches. In another embodiment, the minimum dimple diameter may be 0.140 inches and the maximum dimple diameter may be 0.210 inches. In one embodiment, the minimum dimple diameter may be at least 0.115 inches and the maximum dimple diameter may be no greater than 0.185 inches. In one embodiment, the minimum dimple diameter may be at least 0.115 inches and the maximum dimple diameter may be no greater than 0.210 inches.

[0223] Dimple diameter difference For a dimple pattern having two or more different dimple diameters, the dimple diameter difference describes the difference between (i) the dimple diameter and (ii) the dimple diameter(s) of the closest size(s). For example, for a dimple pattern consisting of A dimples with a dimple diameter of 0.125 inches, B dimples with a dimple diameter of 0.145 inches, C dimples with a dimple diameter of 0.150 inches, and D dimples with a dimple diameter of 0.160 inches, the minimum dimple diameter difference would be 0.005 inches (i.e., the difference between the B dimple diameter and the C dimple diameter), and the maximum dimple diameter difference would be 0.020 inches (i.e., the difference between the A dimple diameter and the B dimple diameter). In particular, the minimum dimple diameter difference and the maximum dimple diameter difference can be used to describe the relative differences between the dimple diameters comprising a given pattern. In one embodiment, the minimum dimple diameter difference is at least 0.025 inches. In another embodiment, the minimum dimple diameter difference is at least 0.035 inches. In another embodiment, the minimum dimple diameter difference is at least 0.045 inches. In yet another embodiment, the maximum dimple diameter difference is 0.120 inches or less. In another embodiment, the maximum dimple diameter difference is 0.090 inches or less. In another embodiment, the maximum dimple diameter difference is 0.060 inches or less.

[0224] String Depth Each dimple on a golf ball having the aerodynamic characteristics disclosed herein may have a designated chord depth. In one embodiment, the average chord depth may be measured among all of the dimples in a designated dimple pattern. In one embodiment, the average chord depth may be at least 0.0040 inches. In one embodiment, the average chord depth may be at least 0.0050 inches. In one embodiment, the average chord depth may be less than 0.0050 inches. In one embodiment, the average chord depth may be less than 0.0042 inches. In other embodiments, the average chord depth may be between 0.0030 inches and 0.0060 inches, or between 0.0045 inches and 0.0055 inches, or between 0.0045 inches and 0.0055 inches, or between 0.0050 inches and 0.0070 inches.

[0225] Edge angle The dimples on balls having the aerodynamic properties disclosed herein may have a variety of edge angles. In one embodiment, the average edge angle may be measured among all of the dimples in a specified dimple pattern. In one embodiment, the average edge angle may be between 10.0 degrees and 16.0 degrees. In another embodiment, the average edge angle may be between 12.0 degrees and 14.0 degrees. In another embodiment, the average edge angle may be at least 14.0 degrees. In another embodiment, the average edge angle may be at least 15.0 degrees. In another embodiment, the average edge angle may be less than 13.0 degrees. In another embodiment, the average edge angle may be less than 12.0 degrees.

[0226] Dimple volume Golf balls having the aerodynamic properties disclosed herein can have a variety of dimple volumes, i.e., the total volume of all of the dimples. In one embodiment, the dimple volume is 0.0365 in 3 ~0.0565in 3 In one embodiment, the dimple volume is 0.0395 in 3 ~0.0535in 3 In one embodiment, the dimple volume is 0.0400 in 3 ~0.0550in3 In one embodiment, the dimple volume is 0.0325 in 3 ~0.0600in 3 In one aspect, the dimple volume is at least 0.0400 in 3 In one aspect, the dimple volume is at least 0.0450 in 3 In one aspect, the dimple volume is at least 0.0500 in 3 In one aspect, the dimple volume is at least 0.0550 in 3 In one embodiment, the dimple volume is 0.0550 in 3 In one aspect, the dimple volume is 0.0600 in 3 In one aspect, the dimple volume is 0.0650 in 3 In one aspect, the dimple volume is 0.0700 in 3 It can be as follows:

[0227] Dimple planar shape and profile The planar shape and / or profile of the golf ball of the present disclosure can be part of an overall dimple pattern selected to achieve various desired aerodynamic characteristics. Dimple patterns that provide a high percentage of surface coverage are well known in the art. For example, U.S. Patent Nos. 5,562,552, 5,575,477, 5,249,804, and 4,925,193 (each of which is incorporated herein by reference in its entirety as if fully set forth herein) disclose geometric patterns for positioning dimples on a golf ball.

[0228] In one embodiment, the dimples may have a cross-sectional profile that is spherical, catenary, or any other shape. The cross-sectional profile of the dimples may vary as would be understood by one skilled in the art. The planar shape of the dimples may include, but is not limited to, circular, elliptical, triangular, square, pentagonal, hexagonal, polygonal, circular periodic, irregular, or any other planar shape known to one skilled in the art. The planar shape of the dimples may vary as would be understood by one skilled in the art.

[0229] The cross-sectional profile of the dimples may include, but is not limited to, spherical, catenary, conical, cylindrical, elliptical, sinusoidal, polynomial, superposition function, or any other profile known to those skilled in the art. They may also have straight, curved, or sloped edges or sides, and may be concave or convex. In summary, any type of dimple or protrusion (bramble) known to those skilled in the art may be used in the present invention.

[0230] The underlying pattern shapes can include regular, semi-regular, and irregular polyhedra, including, but not limited to, tetrahedron, cube, octahedron, dodecahedron, icosahedron, cuboctahedron, icosidodecahedron, irregular cube, triangular bipyramid, square bipyramid, pentagonal bipyramid, hexagonal bipyramid, heptagonal bipyramid, and other bipyramids.

[0231] Exemplary Dimple Pattern Classification The following non-limiting exemplary dimple pattern classifications may be matched or paired with any one or more of the golf ball structures or non-limiting exemplary golf ball structure classifications disclosed herein.

[0232] A first non-limiting exemplary dimple pattern classification is a total dimple count of less than 280, a total surface coverage of at least 75.0% but not more than 85.0%, and a surface area of ​​at least 0.0425 in 3 but 0.0500in 3The following may be included: total dimple volume, the majority of dimples having a circular planar shape, and an underlying basic geometric shape of a regular polyhedron.

[0233] A second non-limiting exemplary dimple pattern classification may include a total dimple count of at least 300 but not more than 420 dimples, a dimple diameter of 3 or less, a dimple diameter range of at least 0.100 inches, and a total surface coverage of at least 70.0% but not more than 82.0%.

[0234] A third non-limiting exemplary dimple pattern classification may include a total dimple count of at least 430, a dimple diameter range of at least 0.035 inches but not more than 0.075 inches, and a total surface coverage of at least 76.0% but not more than 83.0%.

[0235] A fourth non-limiting exemplary dimple pattern classification is a plurality of dimples having a non-circular planar shape, a total surface coverage of at least 73.0%, and a surface area of ​​at least 0.0300 in 3 but 0.0450in 3 It may include a total dimple volume of 0.225 inches or less and a maximum equivalent dimple diameter of 0.225 inches or less.

[0236] A fifth non-limiting exemplary dimple pattern classification is a total surface coverage of at least 85.0, a surface area of ​​at least 0.0380 in 3 but 0.0530in 3 This may include a total dimple volume of:

[0237] A sixth non-limiting exemplary dimple pattern classification is a total surface coverage of at least 77.0% but not more than 85.0%; a surface area of ​​at least 0.0365 in 3 but 0.0445in 3 The dimples may include a total dimple volume of 0.025 inches or less, a maximum dimple diameter difference of 0.025 inches or less, and a total number of dimples of at least 280 but not more than 420.

[0238] A seventh non-limiting exemplary dimple pattern classification is a total surface coverage of 75.0% or less, a maximum dimple diameter of 0.200 inches or less, a total number of dimples greater than 280 but not more than 410, and a surface area of ​​at least 0.0325 inches. 3 The total dimple volume may include:

[0239] An eighth non-limiting exemplary dimple pattern classification may include a total number of at least 300 but not more than 390 dimples, a surface coverage of less than 75.0%, and a majority of the dimples having a polygonal planar shape.

[0240] A ninth non-limiting exemplary dimple pattern classification is a total dimple count of at least 300 but not more than 400, a surface coverage of at least 75.0%, a majority of dimples having a circular planar shape, a bipyramidal underlying base geometry, and a surface area of ​​at least 0.0370 in. 3 The total dimple volume may include:

[0241] A tenth non-limiting exemplary dimple pattern classification may include a total number of at least 270 but not more than 440 dimples, a surface coverage of 75.0% or less, a majority of the dimples having a circular planar shape, and a plurality of the dimples having a non-spherical cross-sectional profile.

[0242] An eleventh non-limiting exemplary dimple pattern classification is a total dimple count of at least 270 but not more than 440, a surface coverage of 86% or less, a majority of dimples having a circular planar shape, a plurality of dimples having a non-spherical cross-sectional profile, and a surface area of ​​at least 0.0370 in. 3 The total dimple volume may include:

[0243] A twelfth non-limiting exemplary dimple pattern classification may include a total number of at least 300 but not more than 450 dimples, a surface coverage of 73.0% or less, a majority of dimples having a circular planar shape, and a majority of dimples having a spherical cross-sectional profile.

[0244] A thirteenth non-limiting exemplary dimple pattern classification is a total number of at least 300 but not more than 450 dimples, a surface coverage of at least 75.0%, a majority of dimples having a circular planar shape, a majority of dimples having a spherical cross-sectional profile, and a surface area of ​​at least 0.0370 in 3 The total dimple volume may include:

[0245] A fourteenth non-limiting exemplary dimple pattern classification is a total dimple count of at least 280 but not more than 420, a total surface coverage of at least 75.0%, a majority of dimples having a circular planar shape, and a surface area of ​​0.0300 in 3 The total dimple volume may include:

[0246] A fifteenth non-limiting exemplary dimple pattern classification is a total dimple count of at least 260 but not more than 310, a total surface coverage of at least 70.0% but not more than 80.0%, and a surface area of ​​at least 0.0300 in 3 However, it is 0.0380 in 3 The total dimple volume may include:

[0247] A sixteenth non-limiting exemplary dimple pattern classification may include a total number of at least 300 but not more than 390 dimples, a total surface coverage of at least 80.0%, a majority of dimples having a polygonal planar shape, and a majority of dimples having a chord depth of at least 0.0050.

[0248] A seventeenth non-limiting exemplary dimple pattern classification is one having a total number of 370 or less dimples, an icosahedral underlying base geometry, a majority of dimples having a circular dimple planform, and a diameter of at least 0.0400 in 3 The total dimple volume may be

[0249] An eighteenth non-limiting exemplary dimple pattern classification may have a plurality of dimples having a spherical cross-sectional profile, a bipyramidal underlying base geometry, a total number of dimples of at least 300 but not more than 350, a plurality of dimples having a chord depth of at least 0.070 inches, and a total surface coverage of at least 80.0%.

[0250] A nineteenth non-limiting exemplary dimple pattern classification is one having a dimple pattern size of at least 0.0390 in 3 a total dimple volume of at least 79.0% but not more than 85.0%, a total surface coverage of at least 79.0% but not more than 85.0%, and an average dimple diameter of at least 0.145 inches but not more than 0.190 inches.

[0251] A twentieth non-limiting exemplary dimple pattern classification has a total number of at least 320 but not more than 400 dimples, a majority of the dimples may have a spherical cross-sectional profile, and a plurality of dimples comprising at least 20% of the total number of dimples have edge angles that differ from the edge angles of the remaining dimples by at least 1.5 degrees.

[0252] Golf Ball Structure The present disclosure may be used with any type of golf ball structure. For example, the golf ball may have a two-piece construction, a double cover or veneer cover construction, or other multi-layer construction, depending on the type of performance desired for the ball. In one embodiment, the core of the golf ball may be a single core, a dual core, a triple core, or a core having four or more layers. In one embodiment, the cover may include two or more layers, and / or the casing may include two or more layers. The cover may include one, two, three, or four or more layers. The golf ball may include a casing layer or intermediate layer that may include one, two, three, or four or more layers.

[0253] In one embodiment, a golf ball having at least a core and a cover is disclosed. In one embodiment, the golf ball can include at least one intermediate layer. In one embodiment, the core and / or cover can be composed of a single layer or multiple layers. The golf ball can be a two-piece golf ball, a three-piece golf ball, a four-piece golf ball, a five-piece golf ball, a six-piece golf ball, or a seven-piece or more golf ball.

[0254] In one embodiment, a golf ball of the present disclosure is a one-piece ball in which the core and cover form a single, integral layer. In another embodiment, shown in FIG. 22A , a golf ball of the present disclosure is a two-piece ball 10 including a core 12 and a single cover layer 14. As shown in FIG. 22B , in one embodiment, a golf ball 20 includes a core 22, an intermediate layer 24, and a cover layer 26. In FIG. 22B , intermediate layer 24 may be considered an outer core layer, an inner cover layer, a mantle or casing layer, or any other layer disposed between core 22 and cover layer 26. Referring to FIG. 22C , in another embodiment, a four-piece golf ball 30 includes an inner core layer 32, an outer core layer 34, an intermediate layer 36, and an outer cover layer 38. In FIG. 22C , intermediate layer 36 may be considered a casing or mantle layer, an inner cover layer, or any other layer disposed between outer core layer 34 and the outer cover of ball 38. Those skilled in the art will understand that a four-piece golf ball can include any combination of layers, such as (i) a core layer, two intermediate layers, and a cover layer, or (ii) a core layer, an intermediate layer, and two cover layers. Referring to FIG. 22D , in another version, a five-piece golf ball 40 includes a three-layer core having a center 42, an intermediate core layer 44, an outer core layer 46, an inner cover layer 48, and an outer cover layer 50. Those skilled in the art will understand that a five-piece golf ball can include any combination of layers, such as (i) two core layers, two intermediate layers, and a cover layer, or (ii) a core layer, two intermediate layers, and two cover layers, or (iii) a core layer, three intermediate layers, and a cover layer. As illustrated herein, golf balls according to the present disclosure can include any combination of any number of core layers, intermediate layers, and cover layers.

[0255] The present disclosure may be used in any type of golf ball structure. Examples of golf ball structures that may be used in the present disclosure include those described in U.S. Patent Nos. 5,713,801, 5,885,172, 5,919,100, 5,965,669, 5,981,654, 5,981,658, and 6,149,535, each of which is incorporated in its entirety as if fully set forth herein. Further exemplary ball structures, including additional details regarding the various layers, materials, dimensions, and other features of golf balls, are disclosed in U.S. Patent Nos. 7,361,102, 7,927,233, 8,834,300, 8,845,456, 9,205,308, and 9,795,836, each of which is incorporated in its entirety as if fully set forth herein.

[0256] Examples of these and other types of ball constructions that may be used in the present disclosure include those described in U.S. Patent Nos. 5,713,801, 5,885,172, 5,919,100, 5,965,669, 5,981,654, 5,981,658, and 6,149,535, each of which is incorporated in its entirety as if fully set forth herein. In one embodiment, the golf ball can be a two-piece, three-piece, four-piece, five-piece, six-piece, or seven or more-piece golf ball.

[0257] Different materials may also be used in the construction of golf balls made with the present disclosure. For example, the cover of the ball may be made of a polyurea material, a polyurethane-urea hybrid material, a polyurea-urethane hybrid material, an ionomer material, or any other suitable cover material known to those skilled in the art. Different materials may also be used to form the core layer and intermediate layer of the golf ball.

[0258] The present invention is not intended to be limited by the materials used to form each layer of the golf ball. Particularly suitable materials include, but are not limited to, thermoset materials such as polybutadiene, styrene butadiene, isoprene, polyisoprene, and transisoprene; thermoplastic resins such as ionomer resins, polyamides, and polyesters; and thermoplastic and thermoset polyurethanes and polyureas.

[0259] Particularly suitable thermoset materials include, but are not limited to, thermoset rubber compositions comprising a base polymer, an initiator, a coagent and / or a curative, and optionally one or more of metal oxides, metal or fatty acids, antioxidants, softening and accelerating agents, fillers, and additives. Suitable base polymers include natural and synthetic rubbers, including, but not limited to, polybutadiene, polyisoprene, ethylene propylene rubber (EPR), styrene-butadiene rubber, styrene block copolymer rubbers (SI, SIS, SB, SBS, SIBS, etc., where "S" is styrene, "I" is isobutylene, and "B" is butadiene), butyl rubber, halobutyl rubber, polystyrene elastomers, polyethylene elastomers, polyurethane elastomers, polyurea elastomers, metallocene-catalyzed elastomers and plastomers, copolymers of isobutylene and para-alkylstyrene, halogenated copolymers of isobutylene and para-alkylstyrene, acrylonitrile butadiene rubber, polychloroprene, alkyl acrylate rubber, chlorinated isoprene rubber, acrylonitrile-chlorinated isoprene rubber, polyalkenamers, and combinations of two or more thereof. Suitable initiators include organic peroxides, high-energy radiation sources capable of generating free radicals, CC initiators, and combinations thereof. Suitable coagents include, but are not limited to, metal salts of unsaturated carboxylic acids, unsaturated vinyl compounds and polyfunctional monomers (e.g., trimethylolpropane trimethacrylate), phenylene bismaleimide, and combinations thereof.Suitable curing agents include, but are not limited to, sulfur, N-oxydiethylene 2-benzothiazole sulfenamide, N,N-di-ortho-tolylguanidine, bismuth dimethyldithiocarbamate, N-cyclohexyl 2-benzothiazole sulfenamide, N,N-diphenylguanidine, 4-morpholinyl-2-benzothiazole disulfide, dipentamethylene thiuram hexasulfide, thiuram disulfide, mercaptobenzothiazole, sulfenamides, dithiocarbamates, thiuram sulfides, guanidine, thiourea, xanthates, dithiophosphates, aldehyde-amines, dibenzothiazyl disulfide, tetraethyl thiuram disulfide, tetrabutyl thiuram disulfide, and combinations thereof. Suitable types and amounts of base polymers, initiators, coagents, fillers, and additives are more fully described in, for example, U.S. Patent Nos. 6,566,483, 6,695,718, 6,939,907, 7,041,721, and 7,138,460, the entire disclosures of which are incorporated herein by reference. Particularly suitable diene rubber compositions are further disclosed in, for example, U.S. Patent Application Publication No. 2007 / 0093318, the entire disclosure of which is incorporated herein by reference.

[0260] Also particularly suitable materials include a) thermoset polyurethanes, polyureas, and hybrids of polyurethanes and polyureas; b) thermoplastic polyurethanes, polyureas, and hybrids of polyurethanes and polyureas, such as Estane® TPU, available from Lubrizol Corporation; and c) E / X and E / X / Y ionomers, where E is an olefin (e.g., ethylene), X is a carboxylic acid (e.g., acrylic acid, methacrylic acid, crotonic acid, maleic acid, fumaric acid, or itaconic acid), and Y is a softening comonomer (e.g., vinyl esters of aliphatic carboxylic acids where the acid has 2 to 10 carbons, alkyl ethers where the alkyl group has 1 to 10 carbons, alkyl alkyl acrylates such as alkyl methacrylates where the alkyl group has 1 to 10 carbons), such as Surlyn® ionomer resins and HPF1000 and HPF2000 available from Dow Chemical Company, ExxonMobil Chemical Iotek® ionomers, available from The Dow Chemical Company; Amplify® IO ionomers, ethylene acrylic acid copolymers, available from A. Schulman Inc.Crrrix® ionomer resins commercially available from Evonik Industry, d) polyisoprene, e) polyoctenamers, such as Vestenamer® polyoctenamers commercially available from Evonik Industry, f) polyethylene (including, for example, low density polyethylene, linear low density polyethylene, and high density polyethylene), polypropylene, g) rubber-toughened olefin polymers, non-ionomeric acid copolymers, such as (meth)acrylic acid, which do not become part of the ionomeric copolymer, h) olefin copolymers, such as olefin copolymers, e.g., ... Plastomers, i) flexomers, j) styrene / butadiene / styrene block copolymers, k) styrene / ethylene-butylene / styrene block copolymers, l) polybutadiene, m) styrene butadiene rubber, n) ethylene propylene rubber, o) ethylene propylene diene rubber, p) dynamically vulcanized elastomers, q) ethylene vinyl acetate, r) ethylene (meth)acrylate, s) polyvinyl chloride resins, t) polyamides, amide ester elastomers, and copolymers of ionomers and polyamides, such as Pebax® thermoplastic polyethers and polyesteramides available from Arkema Inc., u) crosslinked trans-polyisoprene, v) polyester-based thermoplastic elastomers, such as EI du Pont de Nemours and Examples of suitable elastomers include, but are not limited to, Hytrel® polyester elastomers available from the Company and Riteflex® polyester elastomers available from Ticona, w) polyurethane-based thermoplastic elastomers, such as Elastollan® polyurethanes available from BASF, x) synthetic or natural vulcanized rubber, y) and combinations thereof.

[0261] Compositions containing ionomers or mixtures of two or more E / X and E / X / Y ionomers are particularly suitable intermediate and cover layer materials. Preferred E / X and E / X / Y ionomer cover compositions include (a) compositions containing a "high acid ionomer" (i.e., having an acid content greater than 16% by weight), such as Surlyn® 8150, and (b) compositions containing a high acid ionomer and a maleic anhydride-grafted non-ionomeric polymer (e.g., Fusabond® functional polymer). A particularly preferred mixture of a high acid ionomer and a maleic anhydride-grafted polymer is an 84% by weight / 16% by weight mixture of Surlyn® 8150 and Fusabond®.Blends of high acid ionomers with maleic anhydride graft polymers are further disclosed, for example, in U.S. Pat. Nos. 6,992,135 and 6,677,401, the disclosures of which are incorporated herein by reference in their entireties; (c) compositions comprising a 50 / 45 / 5 blend of Surlyn® 8940 / Surlyn® 9650 / Nucrel® 960, preferably having a material hardness of 80-85 Shore C; (d) compositions comprising a 50 / 45 / 5 blend of Surlyn® 8940 / Surlyn® 9650 / Nucrel® 960, preferably having a material hardness of about 90 Shore C; (e) a composition comprising a 50 / 25 / 25 blend of Surlyn® 40 / Surlyn® 9650 / Surlyn® 9910, (f) a composition comprising a 50 / 50 blend of Surlyn® 8940 / Surlyn® 9650, preferably having a material hardness of about 86 Shore C; (g) a composition comprising a blend of Surlyn® 7940 / Surlyn® 8940, optionally containing a melt flow modifier; (h) a composition comprising a blend of a first high acid ionomer and a second high acid ionomer, wherein the first high acid ionomer is a 50 / 25 / 25 blend of Surlyn® 40 / Surlyn® 9650 / Surlyn® 9910; (h) a composition comprising one high acid ionomer neutralized with a different cation than the second high acid ionomer (e.g., a 50 / 50 mixture of Surlyn® 8150 and Surlyn® 9120), optionally comprising one or more melt flow modifiers such as an ionomer, an ethylene acid copolymer, or an ester terepolymer; and (i) a mixture of a first high acid ionomer and a second high acid ionomer, wherein the first high acid ionomer is neutralized with a different cation than the second high acid ionomer, and 0 to 10 wt. % of an ethylene acid copolymer or ester terepolymer. and an ethylene / acid / ester ionomer neutralized with the same cation as either the first high acid ionomer or the second high acid ionomer, or a different cation than the first and second high acid ionomers (e.g., a mixture of 40-50 wt. % Surlyn® 8140 or 8150, 40-50 wt. % Surlyn® 9120, and 0-10 wt. % Surlyn® 6320).

[0262] Surlyn® 8150, Surlyn® 8940, and Surlyn® 8140 are different grades of E / MAA copolymers in which the acid groups have been partially neutralized with sodium ions. Surlyn® 9650, Surlyn® 9910, and Surlyn® 9120 are different grades of E / MAA copolymers in which the acid groups have been partially neutralized with zinc ions. Surlyn® 7940 is an E / MAA copolymer in which the acid groups have been partially neutralized with lithium ions. Surlyn® 6320 is a very low modulus magnesium ionomer with a moderate acid content. Nucrel® 960 is an E / MAA copolymer resin made with nominally 15% by weight methacrylic acid. Surlyn® ionomers, Fusabond® polymers, and Nucrel® copolymers are commercially available from Theow Chemical Company.

[0263] Suitable E / X and E / X / Y type ionomer cover materials are further disclosed in, for example, U.S. Pat. Nos. 6,653,382, 6,756,436, 6,894,098, 6,919,393, and 6,953,820, the entire disclosures of which are incorporated herein by reference.

[0264] Suitable polyurethanes, polyureas, and polyurethane / polyurea blends and hybrids are further disclosed in, for example, U.S. Pat. Nos. 5,334,673, 5,484,870, 6,506,851, 6,756,436, 6,835,794, 6,867,279, 6,960,630, and 7,105,623, U.S. Patent Application Publication No. 2009 / 0011868, U.S. Patent Application Publication No. 2021 / 0093929, U.S. Patent Application Publication No. 2007 / 0117923, and U.S. Pat. Nos. 8,865,052, 6,734,273, 8,026,334, and 8,034,873, the disclosures of which are incorporated herein by reference in their entireties.

[0265] Suitable UV absorbers, optionally included in the cover layer composition, are further disclosed in, for example, US Pat. Nos. 5,156,405, 5,840,788, and 7,722,483, the entire disclosures of which are incorporated herein by reference.

[0266] The dimensions, ie, thickness / diameter, of each golf ball layer can vary depending on the desired properties.

[0267] Coefficient of restitution The "coefficient of restitution" or "COR" of a golf ball refers to the ratio of the rebound velocity of the ball to its initial oncoming velocity when the ball is fired from an air cannon at a rigid vertical plate. COR is determined according to known procedures, in which a golf ball or ball subassembly (e.g., a golf ball core) is fired from an air cannon at two given velocities, with 125 feet per second being used in the calculation. Ballistic light screens are positioned at fixed distances between the air cannon and a steel plate to measure ball velocity. As the ball travels toward the steel plate, it activates each light screen and the ball's time at each light screen is measured. This provides an oncoming travel time that is inversely proportional to the ball's oncoming velocity. The ball impacts the steel plate, rebounds, and passes through the light screen again. As the rebounding ball activates each light screen, the ball's time at each screen is measured. This provides an oncoming travel time that is inversely proportional to the ball's offcoming velocity. COR is then calculated as the ratio of the ball's offcoming travel time to the ball's oncoming travel time (COR=V out / Vin =T in / T out ).

[0268] In one embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a COR of at least 0.770, more preferably at least 0.790, or most preferably at least 0.800. In another embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a COR of 0.800-0.815, or 0.805-0.825, or 0.810-0.820. In one embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a COR of at least 0.805. In one embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a COR of at least 0.810. In one embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a COR of at least 0.815.

[0269] Compression As disclosed in Jeff Dalton's *Compression by Any Other Name*, Science and Golf IV, Proceedings of the World Scientific Congress of Golf (Eric Thain ed., Routledge, 2002) (“J. Dalton”), several different methods can be used to measure compression, including Atti compression, Riehle compression, load / deflection measurements at various fixed loads and offsets, and effective modulus. For purposes of this invention, compression refers to the Soft Center Deflection Index (“SCDI”). The SCDI is a program modification of a dynamic compression machine (DCM) that allows for the determination of the pounds required to deflect a core 10% of its diameter. The DCM is a device that applies a load to a core or ball and measures the number of inches the core or ball deflects at the measured load. A raw load / deflection curve fitted to the Atti compression scale is generated, and a number representing Atti compression is derived. The DCM does this via a load cell attached to the bottom of a hydraulic cylinder that is pneumatically triggered at a fixed speed toward a fixed core. The cylinder is fitted with an LVDT that measures the distance the cylinder travels during the test. A software-based logarithmic algorithm ensures that no measurements are taken until at least five consecutive increases in load are detected during the initial phase of the test. The SCDI is a slight variation of this setup. The hardware is the same, but the software and output have been modified. The SCDI looks at the pound-force required to deflect the core x inches. That amount of deflection is 10% of the core diameter. The DCM is triggered, the cylinder deflects the core 10% of its diameter, and the DCM reports the pound-force (measured from the attached load cell) required to deflect the core that amount. The displayed value is a single number in pounds. As used herein, the term compression refers to DCM compression.

[0270] In one embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a compression of at least 50, or more preferably at least 75, or most preferably at least 80. In another embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a compression of 70-110, or 80-110, or 90-105. In one embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a compression of at least 75. In one embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a compression of at least 85. In one embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a compression of at least 95. In one embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have a compression of at least 100. In one embodiment, a golf ball having any one or more of the aerodynamic properties disclosed herein can have a compression of at least 105.

[0271] initial velocity In one embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have an initial velocity (measured according to the USGA Initial Velocity Test Method or calculated using the COR to USGA Initial Velocity Correlation) of at least 240 ft / sec, or at least 245 ft / sec, or at least 250 ft / sec, or up to 255 ft / sec. In another embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have an initial velocity of 248 ft / sec to 254 ft / sec. In another embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have an initial velocity of 250 ft / sec to 255 ft / sec. In another embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have an initial velocity of 240 ft / sec to 255 ft / sec. In another embodiment, a golf ball having any one or more of the aerodynamic characteristics disclosed herein may have an initial velocity of at least 255 ft / sec.

[0272] Exemplary Golf Ball In one aspect, the dimple pattern, aerodynamic performance parameters (i.e., C of the present disclosure) D , C L Any one of the following characteristics may be applied to golf balls having various golf ball structures: a COR of at least 0.800, a compression of at least 80, and / or an initial velocity of at least 250 feet / second. In one embodiment, the golf ball may have a COR greater than 0.810. In another embodiment, the golf ball may have a COR greater than 0.800 and an initial velocity in the range of 250-255 feet / second. Various other CORs, initial velocities, and other golf ball parameters are disclosed herein.

[0273] Exemplary golf ball structures can include a core (such as a single-layer core or a dual-layer core), a casing or intermediate layer, and a cover layer. In one embodiment, the core can have a diameter of at least 1.500 inches, or at least 1.525 inches, or at least 1.545 inches. In another embodiment, the core can have a diameter of at least 1.510 inches, or at least 1.530 inches, or at least 1.550 inches. In another embodiment, the core can have a diameter of at least 1.560 inches, or 1.570 inches, or 1.580 inches, or 1.600 inches. Those skilled in the art will understand that core sizes can vary.

[0274] In one embodiment, the core may have a coefficient of restitution (COR) of at least 0.800. In another embodiment, the core may have a COR of at least 0.805. In another embodiment, the core may have a COR of at least 0.795. In another embodiment, the core may have a COR of at least 0.785. In another embodiment, the core may have a COR of at least 0.780. In another embodiment, the core may have a COR of at least 0.775. In another embodiment, the core may have a COR of at least 0.770. Those skilled in the art will understand that COR can vary.

[0275] In one embodiment, the core can have a positive hardness gradient, as understood by those skilled in the art and as disclosed or defined in U.S. Patent No. 2024 / 0173595, which is assigned to Acushnet Company and incorporated by reference as if fully set forth herein. For example, the core of the golf balls disclosed herein can have a hardness gradient of at least 5 Shore C, or at least 10 Shore C, or at least 15 Shore C, or at least 20 Shore C, or at least 25 Shore C, or at least 30 Shore C.

[0276] In one embodiment, the casing layer may have a thickness of 0.025 inches to 0.035 inches. In one embodiment, the casing layer may have a thickness of less than 0.025 inches. In one embodiment, the casing layer may have a thickness of greater than 0.035 inches. In one embodiment, the casing layer may have a thickness of at least 0.035 inches, or 0.040 inches, or 0.045 inches, or 0.050 inches, or 0.055 inches. In one embodiment, the casing layer may be formed from a material having a high flexural modulus (as measured by ASTM D790), such as at least 60,000 psi, or at least 65,000 psi, or at least 70,000 psi, or at least 75,000 psi. In one embodiment, the cased core may have a COR of at least 0.780, or at least 0.790, or at least 0.800, or at least 0.810, or at least 0.820.

[0277] In one embodiment, a golf ball may include a cased core having a compression of at least 70, or at least 75, or at least 80, or at least 85, or at least 90, or at least 95, or at least 100, or at least 105. In one embodiment, the cased core may have a compression of 70 to 105. In one embodiment, the cased core may have a compression of 50 to 85. In one embodiment, the cased core may have a compression of 90 to 115.

[0278] In one embodiment, the cover layer can have a thickness of 0.025 inches to 0.035 inches. In one embodiment, the cover layer can have a thickness of less than 0.025 inches. In one embodiment, the cover layer can have a thickness of greater than 0.035 inches. In one embodiment, the cover layer can have a thickness of at least 0.025 inches, or 0.030 inches, or 0.035 inches, or 0.050 inches, or 0.060 inches. In one embodiment, the cover layer has a thickness of 0.020 inches to 0.070 inches.

[0279] In one embodiment, the exemplary golf balls disclosed herein have the following relationship between golf ball compression and golf ball COR: If the golf ball compression is less than 60, the golf ball COR is greater than 0.825. If the golf ball compression is between 60 and 80, the golf ball COR is greater than 0.820. If the golf ball compression is between 80 and 100, the golf ball COR is greater than 0.805. If the golf ball compression is greater than 100, the golf ball COR is greater than 0.790. In another embodiment, the golf balls disclosed herein can have a relationship between compression and COR such that when the golf ball compression is less than 40, the golf ball COR is greater than 0.825.

[0280] For golf ball compression C0, when the golf ball compression is greater than 40, the COR is defined by the curve in FIG. 21 and is defined by Equation 11:

[0281]

number

[0282] 21 is a representative plot showing golf ball compression and golf ball COR for some exemplary golf balls according to the present disclosure. As shown in FIG. 21, an exemplary target "COR area" is depicted above the plot line.

[0283] Exemplary Golf Ball Construction Classifications The following non-limiting exemplary golf ball construction categories may be matched or paired with any one or more of the dimple pattern categories, examples, or other aspects disclosed herein.

[0284] A first non-limiting exemplary golf ball construction class may include a two-layer golf ball including a core and a cover, having a COR of at least 0.800, a compression of at least 80, and an initial velocity of at least 250 feet per second.

[0285] A second non-limiting exemplary golf ball construction category may include a two-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a core and a cover, the core having a diameter of at least 1.500 inches, a COR of at least 0.770, and a weight of at least 1.115 ounces.

[0286] A third non-limiting exemplary golf ball construction category may include a two-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a core and a cover, the core having a diameter of at least 1.545 inches, a COR of at least 0.780, and a weight of at least 1.225 ounces.

[0287] A fourth non-limiting exemplary golf ball construction category may include a two-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a core and a cover, the core having a diameter of at least 1.570 inches, a COR of at least 0.790, and a weight of at least 1.320 ounces.

[0288] A fifth non-limiting exemplary golf ball construction category may include a three-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a core, a casing, and a cover, the core having a diameter of at least 1.500 inches, a COR of at least 0.780, and a weight of at least 1.115 ounces.

[0289] A sixth non-limiting exemplary golf ball construction category may include a three-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a core, a casing, and a cover, the core having a diameter of at least 1.525 inches, a COR of at least 0.785, and a weight of at least 1.220 ounces.

[0290] A seventh non-limiting exemplary golf ball construction category may include a three-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a core, a casing, and a cover, the core having a diameter of at least 1.545 inches, a COR of at least 0.790, and a weight of at least 1.225 ounces.

[0291] An eighth non-limiting exemplary golf ball construction category may include a three-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a core, a casing, and a cover, the core having a diameter of at least 1.570 inches, a COR of at least 0.790, and a weight of at least 1.320 ounces.

[0292] A ninth non-limiting exemplary golf ball construction category may include a four-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a dual-layer core, a casing, and a cover, the core having a diameter of at least 1.525 inches, a COR of at least 0.800, and a weight of at least 1.220 ounces.

[0293] A tenth non-limiting exemplary golf ball construction category may include a four-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a dual-layer core, a casing, and a cover, the core having a diameter of at least 1.545 inches, a COR of at least 0.805, and a weight of at least 1.290 ounces.

[0294] An eleventh non-limiting exemplary golf ball construction category may include a four-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a dual-layer core, a casing, and a cover, the core having a diameter of at least 1.545 inches, a COR of at least 0.810, and a weight of at least 1.290 ounces.

[0295] A twelfth non-limiting exemplary golf ball construction category may include a three-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a core, a casing, and a cover, the core having a diameter of at least 1.525 inches, a COR of at least 0.810, and a weight of at least 1.220 ounces.

[0296] A thirteenth non-limiting exemplary golf ball construction category may include a four-layer golf ball having a compression of at least 80, a COR of at least 0.800, and an initial velocity of at least 250 feet per second, the golf ball including a dual-layer core, a casing, and a cover, the core having a diameter of at least 1.560 inches, a COR of at least 0.790, and a weight of at least 1.305 ounces.

[0297] A fourteenth non-limiting exemplary golf ball construction category may include a three-layer golf ball having a compression of 90-100, a COR of 0.807-0.815, and an initial velocity of at least 250 feet per second, the golf ball including a core, a casing, and a cover, the core having a diameter of 1.520-1.540 inches, a COR of 0.790-0.800, and a weight of 1.215-1.280 ounces.

[0298] A fifteenth non-limiting exemplary golf ball construction category may include a four-layer golf ball having a compression of 100-110, a COR of 0.815-0.820, and an initial velocity of at least 250 feet per second, the golf ball including a dual-layer core, a casing, and a cover, the core having a diameter of 1.545-1.560 inches, a COR of 0.795-0.805, and a weight of 1.280-1.305 ounces.

[0299] A sixteenth non-limiting exemplary golf ball construction category may include a four-layer golf ball having a compression of 100-110, a COR of 0.790-0.800, and an initial velocity of at least 250 feet per second, the golf ball including a dual-layer core, a casing, and a cover, the core having a diameter of 1.545-1.555 inches, a COR of 0.795-0.805, and a weight of 1.280-1.305 ounces.

[0300] A seventeenth non-limiting exemplary golf ball construction category may include a three-layer golf ball having a compression of 90-100, a COR of 0.790-0.800, and an initial velocity of at least 250 feet per second, the golf ball including a core, a casing, and a cover, the core having a diameter of 1.525-1.535 inches, a COR of 0.790-0.800, and a weight of 1.220-1.255 ounces.

[0301] Those skilled in the art will appreciate that golf balls having five or more layers can also be provided with properties similar to those of golf balls having two, three, or four layers.

[0302] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10 and having a COR of at least 0.780 and / or an initial velocity of at least 245 feet / second.

[0303] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10 and having a COR of at least 0.800 and / or an initial velocity of at least 250 feet / second.

[0304] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10 and having a COR of at least 0.805 and / or an initial velocity of at least 250 feet / second.

[0305] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10 and having a COR of at least 0.810 and / or an initial velocity of at least 252 feet / second.

[0306] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10 and having a COR of at least 0.815 and / or an initial velocity of at least 253 feet / second.

[0307] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1 to 10, and having a COR of at least 0.825 and a compression of 60 or less.

[0308] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10, a COR of at least 0.820, and a compression of 60-80.

[0309] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10, a COR of at least 0.805, and a compression of 80-100.

[0310] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10, a COR of at least 0.790, and a compression of at least 100.

[0311] In one embodiment, a golf ball is provided that has any one or more of dimple patterns 1 to 10, a COR of 0.800 to 0.815, and a compression of 90 to 100.

[0312] In one embodiment, a golf ball is provided that has any one or more of dimple patterns 1 to 10, a COR of 0.800 to 0.815, and a compression of 100 to 110.

[0313] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10, wherein the golf ball has a COR of at least 0.800, the golf ball has an initial velocity of at least 250 feet / second, the golf ball has a compression of at least 80, the golf ball core has a COR of at least 0.785, the golf ball core has a diameter of at least 1.500 inches, and the golf ball core has a weight of at least 1.115 ounces.

[0314] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10, wherein the golf ball has a COR of at least 0.800, the golf ball has an initial velocity of at least 250 feet / second, the golf ball has a compression of at least 80, the golf ball core has a COR of at least 0.785, the golf ball core has a diameter of at least 1.525 inches, and the golf ball core has a weight of at least 1.220 ounces.

[0315] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10, wherein the golf ball has a COR of at least 0.800, the golf ball has an initial velocity of at least 250 feet / second, the golf ball has a compression of at least 80, the golf ball core has a COR of at least 0.790, the golf ball core has a diameter of at least 1.525 inches, and the golf ball core has a weight of at least 1.220 ounces.

[0316] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10, wherein the golf ball has a COR of at least 0.800, the golf ball has an initial velocity of at least 250 feet / second, the golf ball has a compression of at least 80, the golf ball core has a COR of at least 0.800, the golf ball core has a diameter of at least 1.545 inches, and the golf ball core has a weight of at least 1.225 ounces.

[0317] In one embodiment, a golf ball is provided having any one or more of dimple patterns 1-10, wherein the golf ball has a COR of at least 0.805, the golf ball has an initial velocity of at least 252 feet / second, the golf ball has a compression of at least 90, the golf ball core has a COR of at least 0.805, the golf ball core has a diameter of at least 1.525 inches, and the golf ball core has a weight of at least 1.220 ounces.

[0318] In one embodiment, 0.230≦C at a Reynolds number of 220,000 and a spin ratio of 0.070. D ≤ 0.250, 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095 D ≤ 0.250, 0.230 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100 D A drag coefficient (C) of ≦0.250 D ) and lift coefficient (C LA ball is provided having a cover including a plurality of dimples arranged in a dimple pattern having a diameter of 1 / 2 mm.

[0319] In one embodiment, the core weighs at least 1.220 ounces and has a coefficient of restitution of at least 0.790. In one embodiment, the core weighs at least 1.245 ounces and has a coefficient of restitution of at least 0.785, or at least 0.790, or at least 0.795, or at least 0.800. In one embodiment, the core weighs at least 1.250 ounces and has a coefficient of restitution of at least 0.785, or at least 0.790, or at least 0.795, or at least 0.800. In one embodiment, the core weighs at least 1.275 ounces and has a coefficient of restitution of at least 0.785, or at least 0.790, or at least 0.795, or at least 0.800. In one embodiment, the core weighs at least 1.290 ounces and has a coefficient of restitution of at least 0.785, or at least 0.790, or at least 0.795, or at least 0.800.

[0320] In one embodiment, the core can have a diameter of at least 1.525 inches. In one embodiment, the core can have a diameter of at least 1.530 inches. In one embodiment, the core can have a diameter of at least 1.535 inches. In one embodiment, the core can have a diameter of at least 1.540 inches. In one embodiment, the core can have a diameter of at least 1.545 inches. In one embodiment, the core can have a diameter of at least 1.550 inches.

[0321] The golf ball also achieved a C with a Reynolds number of 240,000 and a spin ratio of 0.060. L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 Land a lift coefficient of at least 0.200. In one embodiment, this particular golf ball may have a COR of at least 0.780 and / or an initial velocity of at least 240 feet / second. In one embodiment, this particular golf ball may have a COR of at least 0.790 and / or an initial velocity of at least 248 feet / second. In one embodiment, this particular golf ball may have a COR of at least 0.800 and / or an initial velocity of at least 250 feet / second. In another embodiment, this particular golf ball may have a COR of at least 0.805 and / or an initial velocity of at least 252 feet / second. Those skilled in the art will appreciate that COR, initial velocity, and other golf ball construction-related parameters or values ​​may vary.

[0322] In another embodiment, the drag coefficient (C D ), lift coefficient (C L ), and a cover including a plurality of dimples arranged in a dimple pattern having an integrated drag area (DA) defined by the following formula:

[0323]

number

[0324] In the formula, C D (Re) is established at launch conditions of a golf ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate of 2,700 rpm, such that 14,500≦DA≦15,500. The golf ball is further measured at a Reynolds number of 240,000 and a spin rate of 0.060. L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 Land a lift coefficient of at least 0.200. In one embodiment, this particular golf ball may have a COR of at least 0.780 and / or an initial velocity of at least 240 feet / second. In one embodiment, this particular golf ball may have a COR of at least 0.790 and / or an initial velocity of at least 248 feet / second. In one embodiment, this particular golf ball may have a COR of at least 0.800 and / or an initial velocity of at least 250 feet / second. In another embodiment, this particular golf ball may have a COR of at least 0.805 and / or an initial velocity of at least 252 feet / second. In another embodiment, this particular golf ball may have a COR of at least 0.785, a weight of at least 1.220 ounces, and / or a core with a diameter of at least 1.525 inches. In another embodiment, this particular golf ball may have a core with a COR of at least 0.795, and / or a weight of at least 1.290 ounces, and / or a diameter of at least 1.545 inches. Those skilled in the art will understand that COR, initial velocity, compression, and other ball construction-related parameters or values ​​may vary.

[0325] Exemplary Ball Structure Package In one aspect, several golf ball construction features or packages may be provided herein, and these exemplary golf ball constructions are described in detail herein.

[0326] In any one of the golf balls described below, the golf ball core (single layer or multi-layer), casing layer, and cover layer may be formed from any one or more of the exemplary materials disclosed herein.

[0327] Structural Package 1 Table 18 discloses relevant parameters for a golf ball associated with the first structural package. The following example parameters can be provided for a golf ball having three layers, including a core, a casing layer, and a cover layer:

[0328] [Table 18]

[0329] Structural Package 2 Table 19 discloses relevant parameters for a golf ball associated with the second structural package. The following example parameters can be provided for a golf ball having four layers, including an inner core layer, an outer core layer, a casing layer, and a cover layer:

[0330] [Table 19]

[0331] Structural Package 3 Table 20 discloses relevant parameters for golf balls associated with the third construction package. The following exemplary parameters can be provided for a golf ball having two layers, including a core and a cover layer:

[0332] [Table 20]

[0333] Structural Package 4 Table 21 discloses relevant parameters for golf balls associated with the fourth construction package. For a golf ball having two layers, including a core and a cover layer, the following exemplary parameters can be provided:

[0334] [Table 21]

[0335] Structural Package 5 Table 22 discloses relevant parameters for golf balls associated with the fifth construction package. For a golf ball having two layers, including a core and a cover, the following exemplary parameters can be provided:

[0336] [Table 22]

[0337] Structural Package 6 Table 23 discloses relevant parameters for a golf ball associated with the sixth structural package. The following exemplary parameters can be provided for a golf ball having three layers, including a core layer, a casing layer, and a cover layer:

[0338] [Table 23]

[0339] Structural Package 7 Table 24 discloses relevant parameters for a golf ball associated with the seventh construction package. The following exemplary parameters can be provided for a golf ball having four layers, including a dual-layer core, a casing layer, and a cover layer:

[0340] [Table 24]

[0341] Structural Package 8 Table 25 discloses relevant parameters for a golf ball associated with the eighth structural package. The following exemplary parameters can be provided for a golf ball having four layers, including a dual-layer core, a casing layer, and a cover layer:

[0342] [Table 25]

[0343] Structural Package 9 Table 26 discloses relevant parameters for balls associated with the ninth structural package. The following example parameters can be provided for a golf ball having three layers, including a core, a casing layer, and a cover layer:

[0344] [Table 26]

[0345] Structural Package 10 Table 27 discloses relevant parameters for a golf ball associated with the tenth structural package. The following exemplary parameters can be provided for a golf ball having four layers, including a dual-layer core, a casing layer, and a cover layer:

[0346] [Table 27]

[0347] In one aspect, a ball may be provided that includes one of the predefined structural packages and one of the predefined dimple patterns. Various exemplary golf ball profiles are provided below. Those skilled in the art will appreciate that other combinations of structural packages and dimple patterns are possible, and that any one of the structural packages may be matched with any one of the dimple patterns.

[0348] In the first exemplary golf ball profile, structural package 1 is paired with any one of dimple patterns 1-10.

[0349] In the second exemplary golf ball profile, structural package 2 is paired with any one of dimple patterns 1-10.

[0350] In the third exemplary golf ball profile, structural package 3 is paired with any one of dimple patterns 1-10.

[0351] In the fourth exemplary golf ball profile, structural package 4 is paired with any one of dimple patterns 1-10.

[0352] In the fifth exemplary golf ball profile, structural package 5 is paired with any one of dimple patterns 1-10.

[0353] In the sixth exemplary golf ball profile, structural package 6 is paired with any one of dimple patterns 1-10.

[0354] In the seventh exemplary golf ball profile, structural package 7 is paired with any one of dimple patterns 1-10.

[0355] In an eighth exemplary golf ball profile, structural package 8 is paired with any one of dimple patterns 1-10.

[0356] In the ninth exemplary golf ball profile, structural package 9 is paired with any one of dimple patterns 1-10.

[0357] In a tenth exemplary golf ball profile, structural package 10 is paired with any one of dimple patterns 1-10.

[0358] In one aspect, a golf ball is provided that includes: (ii) (i) a first non-limiting exemplary dimple pattern classification paired with any one of the first through seventeen exemplary golf ball construction classifications; (ii) (i) a second non-limiting exemplary dimple pattern classification paired with any one of the first through seventeen exemplary golf ball construction classifications; (ii) (i) a third non-limiting exemplary dimple pattern classification paired with any one of the first through seventeen exemplary golf ball construction classifications; (ii) (i) the fourth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeen exemplary golf ball construction classifications; (ii) (i) the fifth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) the sixth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) the seventh non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) the eighth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) the ninth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) a tenth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) an eleventh non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) a twelfth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) a thirteenth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) the fourteenth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) the fifteenth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) the sixteenth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) a seventeenth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) an eighteenth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; (ii) (i) a nineteenth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications; and (ii) (i) a twentieth non-limiting exemplary dimple pattern classification paired with any one of the first through seventeenth exemplary golf ball construction classifications.

[0359] In one embodiment, a golf ball having (i) any one of the non-limiting exemplary golf ball construction classifications disclosed herein, and / or (ii) any one of the construction packages disclosed herein, has a Reynolds number of 220,000 and a spin ratio of 0.070 with a C D ≤ 0.250, 0.230 ≤ C at a Reynolds number of 160,000 and a spin ratio of 0.095 D ≤ 0.250, 0.230 ≤ C at a Reynolds number of 120,000 and a spin ratio of 0.100 D ≤ 0.250, and C at a Reynolds number of 240,000 and a spin ratio of 0.060 L C ≥ 0.115, at a Reynolds number of 185,000 and a spin ratio of 0.105 L Drag coefficient (C) ≦0.200 D ) and lift coefficient (C LThe cover may include a plurality of dimples arranged in a dimple pattern having a diameter of 1 / 2 mm.

[0360] In one embodiment, a golf ball having (i) any one of the non-limiting exemplary golf ball construction classifications disclosed herein, and / or (ii) any one of the construction packages disclosed herein, exhibits a drag coefficient (C D ), lift coefficient (C L ), and a cover including a plurality of dimples arranged in a dimple pattern having an integrated drag area (DA) defined by the following formula:

[0361]

number

[0362] where C is at 14,500 ≤ DA ≤ 15,500, a Reynolds number of 240,000 and a spin ratio of 0.060. L ≥ 0.115, and C at a Reynolds number of 185,000 and a spin ratio of 0.105 L C so that it is ≦0.200 D (Re) is established at launch conditions of a golf ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate of 2,700 rpm.

[0363] At least some of the golf balls disclosed herein may exhibit a flight pattern with relatively shorter distances on longer shots compared to modern high performance golf balls, due at least in part to higher drag characteristics. At least some of the golf balls disclosed herein may exhibit a decreased overall distance on driver shots compared to modern high performance golf balls. At least some of the golf balls disclosed herein may exhibit the same or approximately the same overall distance on iron or wedge shots compared to modern high performance golf balls.

[0364] The exemplary dimple patterns disclosed herein paired with modern high-performance golf ball structures may exhibit a relatively shorter overall golf ball distance from launch conditions resulting in higher ball speeds, such as those produced by drivers, other metal woods, and long irons, compared to modern high-performance dimple patterns paired with modern high-performance golf ball structures, but may exhibit a very similar overall golf ball distance from launch conditions resulting in lower ball speeds, such as those produced by mid-irons, short irons, and wedges. This is because aerodynamic forces decrease as the golf ball speed decreases, such that the ball's flight becomes increasingly ballistic in nature. Thus, an exemplary golf ball constructed with a dimple pattern exhibiting the aerodynamic characteristics of the present disclosure paired with a modern high-performance golf ball structure may exhibit flight performance under conditions where aerodynamic forces are dominant that differs from the flight performance of a golf ball constructed with a modern high-performance dimple pattern paired with a modern high-performance golf ball structure under the same conditions, but may exhibit the same or very similar flight characteristics under increasingly ballistic flight conditions. In one aspect, the golf balls disclosed herein can achieve these properties through the combination of a relatively high drag dimple pattern matched or paired with a relatively fast or high velocity golf ball construction.

[0365] For purposes of relative comparison, FIG. 20 shows the flight patterns (A), (B), and (C) of driver shots of several exemplary golf balls having dimple patterns including the aerodynamic features disclosed herein and paired with exemplary structural packages disclosed herein, compared to the flight pattern (D) of a conventional golf ball.

[0366] In one embodiment, flight pattern (A) is a relatively high flight window, i.e., 1.400≦C D / C L <1.600. The flight pattern (A) reaches a relatively high peak height compared to a conventional golf ball.

[0367] In one embodiment, the flight pattern (B) is set to a relatively intermediate or moderate flight window, i.e., 1.600≦C D / C L <1.800. The flight pattern (B) reaches a relatively similar peak height compared to a conventional golf ball.

[0368] In one embodiment, the flight pattern (C) is set within a relatively low flight window, i.e., 1.800≦C D / C L ≦2.000. Flight pattern (C) reaches a relatively low peak height compared to conventional golf balls.

[0369] The dimple patterns responsible for flight patterns (A), (B), and (C) have similar high-drag aerodynamic characteristics (i.e., relatively high C D values), but have different aerodynamic lift characteristics, resulting in a high drag-high lift pattern (i.e., a relatively high C L The pattern with a low drag-low lift value has a smaller C value than the high drag-low lift pattern. D / C L This variation in lift-drag balance provides a variety of peak heights for golfers to choose from depending on their preference.

[0370] As shown in Figure 20, exemplary golf ball flight patterns (A), (B), and (C) each reach their respective peak heights at a relatively short distance downrange compared to conventional golf ball flight pattern (D). The flight differences shown in Figure 20 are exemplary depictions of three trajectories (A), (B), and (C) that have increased drag relative to the fourth trajectory (D), while also having distinct lift characteristics among (A), (B), and (C). Those skilled in the art will understand that as the flight becomes increasingly ballistic, flight patterns (A), (B), (C), and (D) will become increasingly similar.

[0371] While it is clear that the exemplary embodiments disclosed herein fulfill the objectives set forth above, it will be understood that numerous modifications and other embodiments may be devised by those skilled in the art. It will therefore be understood that the appended claims are intended to cover all such modifications and embodiments which would fall within the spirit and scope of the present disclosure.

[0372] Terms such as "first," "second," and the like are used to describe various features or elements, but these features or elements should not be limited by these terms. These terms are used only to distinguish one feature or element from another. Thus, a first feature or element discussed below could be referred to as a second feature or element, and similarly, a second feature or element discussed below could be referred to as a first feature or element without departing from the teachings of the present disclosure.

[0373] The golf balls described and claimed herein are not limited in scope by the specific embodiments disclosed herein, as these embodiments are intended as illustrations of certain aspects of the present disclosure. Any equivalent embodiments are intended to be within the scope of the present disclosure. Indeed, various modifications of the device in addition to those shown and described herein will become apparent to those skilled in the art from the foregoing description. Such modifications are also intended to be within the scope of the appended claims. All patents and patent applications cited in the foregoing sentence are expressly incorporated herein by reference in their entirety.

Claims

1. A golf ball comprising at least a core, a casing layer, and a cover formed from urethane, the golf ball has a weight of 1.600 ounces to 1.620 ounces, a diameter of 1.680 inches to 1.700 inches, a compression of at least 80 inches, a coefficient of restitution of at least 0.800, and an initial velocity of at least 250 feet per second; the core having a weight of at least 1.245 ounces, a coefficient of restitution of at least 0.785, and a diameter of at least 1.525 inches; The cover has a Reynolds number of 220,000 and a spin ratio of 0.070 and a C Ｄ ≦0.250, 0.230≦C at a Reynolds number of 160,000 and a spin ratio of 0.095 Ｄ ≦0.250, and 0.230≦C at a Reynolds number of 120,000 and a spin ratio of 0.100 Ｄ a drag coefficient (C) of ≦0.250; Ｄ ) and lift coefficient (C Ｌ ) a plurality of dimples arranged in a dimple pattern having The dimple pattern has a combined drag area (DA) defined by the following formula: [Equation 17] In the formula, C Ｄ (Re) is established at launch conditions of a golf ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate of 2,700 rpm, such that 14,500≦DA≦15,500; C at a Reynolds number of 240,000 and a spin ratio of 0.060 Ｌ ≧0.115, The drag coefficient and the lift coefficient at a Reynolds number of 225,000 and a spin ratio of 0.070 are 1.400≦C Ｄ / C Ｌ A golf ball having a relationship of <2,000.

2. The dimple pattern has a surface coverage of 77.0% to 83.0% and a surface area of ​​0.0425 in ３ ~0.0575 in ３ 2. The golf ball of claim 1, wherein the golf ball is configured with 220 to 270 dimples having a dimple volume of 1000 .mu.m.

3. The dimple pattern has a surface coverage of 80.0% to 85.0% and a surface area of ​​0.0380 in ３ ~0.0425 in ３ 2. The golf ball of claim 1, which is configured with 340 to 390 dimples having a dimple volume of 1000 .mu.m.

4. 2. The golf ball of claim 1, wherein the dimple pattern is comprised of 280 to 420 dimples having a surface coverage of 70.0% to 81.0% and a maximum dimple diameter difference of at least 0.

040.

5. The dimple pattern has a surface coverage of 76.0% to 85.0% and a surface area of ​​0.0350 in ３ ~0.0440 in ３ 2. The golf ball of claim 1, which is configured with 270 to 320 dimples having a dimple volume of 1000 .mu.m.

6. The dimple pattern has a surface coverage of 79.0% to 85.0% and a surface area of ​​0.0175 in ３ ~0.0375 in ３ 2. The golf ball of claim 1, which is configured with 490 to 620 dimples having a dimple volume of 1000 .mu.m.

7. The dimple pattern has a surface coverage of 77.0% to 86.0% and a surface area of ​​0.0225 in ３ ~0.0450 in ３ 2. The golf ball of claim 1, which is configured with 390 to 490 dimples having a dimple volume of 1000 .mu.m.

8. The golf ball of claim 1 , wherein the golf ball has a compression of at least 90.

9. The golf ball of claim 1 , wherein the golf ball has a compression of at least 95.

10. 10. The golf ball of claim 1, wherein the golf ball has a coefficient of restitution of at least 0.

805.

11. The golf ball of claim 1 , wherein the golf ball has a coefficient of restitution of at least 0.

810.

12. 10. The golf ball of claim 1, wherein the core weighs at least 1.260 ounces.

13. The golf ball of claim 1 , wherein the core weighs at least 1.280 ounces.

14. 10. The golf ball of claim 1, wherein the core has a diameter of at least 1.545 inches.

15. 10. The golf ball of claim 1, wherein the core has a coefficient of restitution of at least 0.

790.

16. 10. The golf ball of claim 1, wherein the core has a coefficient of restitution of at least 0.

795.

17. 10. The golf ball of claim 1, wherein the core has a coefficient of restitution of at least 0.

800.

18. C at a Reynolds number of 185,000 and a spin ratio of 0.105 Ｌ 2. The golf ball of claim 1, wherein the flexural modulus is ≦0.

200.

19. 10. The golf ball of claim 1, wherein the core has a weight of at least 1.260 ounces, a coefficient of restitution of at least 0.790, and a diameter of at least 1.530 inches.

20. 10. The golf ball of claim 1, wherein the core has a weight of at least 1.290 ounces, a coefficient of restitution of at least 0.795, and a diameter of at least 1.550 inches.

21. 0.235 ≤ C at a Reynolds number of 220,000 and a spin ratio of 0.070 Ｄ ≦0.250, and 0.235≦C at a Reynolds number of 160,000 and a spin ratio of 0.

095. Ｄ ≦0.250, and 0.235≦C at a Reynolds number of 120,000 and a spin ratio of 0.100 Ｄ 2. The golf ball of claim 1, wherein the flexural modulus is ≦0.

250.

22. 0.240≦C at a Reynolds number of 220,000 and a spin ratio of 0.070 Ｄ ≦0.250, and 0.240≦C at a Reynolds number of 160,000 and a spin ratio of 0.

095. Ｄ ≦0.250, and 0.240≦C at a Reynolds number of 120,000 and a spin ratio of 0.

100. Ｄ 2. The golf ball of claim 1, wherein the flexural modulus is ≦0.

250.

23. 0.235 ≤ C at a Reynolds number of 220,000 and a spin ratio of 0.070 Ｄ ≦0.245, and 0.235≦C at a Reynolds number of 160,000 and a spin ratio of 0.

095. Ｄ ≦0.245, and 0.235≦C at a Reynolds number of 120,000 and a spin ratio of 0.

100. Ｄ 2. The golf ball of claim 1, wherein the flexural modulus is ≦0.

245.

24. 0.230 ≤ C at a Reynolds number of 220,000 and a spin ratio of 0.070 Ｄ ≦0.245, and 0.230≦C at a Reynolds number of 160,000 and a spin ratio of 0.

095. Ｄ ≦0.245, and 0.230≦C at a Reynolds number of 120,000 and a spin ratio of 0.

100. Ｄ 2. The golf ball of claim 1, wherein the flexural modulus is ≦0.

245.

25. 2. The golf ball of claim 1, wherein 14,750≦DA≦15,500.

26. 2. The golf ball of claim 1, wherein 15,000≦DA≦15,500.

27. 2. The golf ball of claim 1, wherein 14,500≦DA≦15,250.

28. 2. The golf ball of claim 1, wherein 14,500≦DA≦15,000.

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