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Nonconforming Anti-slice ball

a technology of non-conformity and ball, applied in the field of golf balls, can solve the problems of increasing the cost and complexity of the golf ball manufacturing process, the disadvantage of the ball construction process, and the tendency of the off-tee to drift off-line and disperse away from the intended trajectory, so as to reduce the dispersion of the hook and the slice

Inactive Publication Date: 2011-12-01
AERO X GOLF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The patent describes a golf ball with a dimple pattern that reduces hook and slice dispersion during flight. The dimple pattern has reduced or no dimple volume in a band around the equator and more dimple volume in the polar regions. This results in a preferred spin axis that reduces the effect of hooks and slices when the ball is hit in a certain way. The ball also has low lift in certain orientations, which further enhances its ability to correct hooks and slices. The dimple pattern can be created by manipulating the volume of dimples across the surface of the ball or by placing regions of lower or zero volume dimples on the ball."

Problems solved by technology

However, with respect to surface characteristics, not all the regions on the surface of a spinning golf ball contribute equally to the generation of the total lift force.
However, a golf ball that is not hit squarely off the tee will tend to drift off-line and disperse away from its intended trajectory.
Although some of these golf balls do reduce some hook and slice dispersion, this type of ball construction has the disadvantage of adding cost to the golf ball manufacturing process.
A golf ball's preferred or selected spin axis may also be established by placing high and low density materials in specific locations within the core or intermediate layers of the golf ball, but has the disadvantage of adding cost and complexity to the golf ball manufacturing process.
If the ball is oriented on the tee so that the “preferred axis” or axis through the poles is pointing up and down (pole over pole or POP orientation), it is less effective in correcting hooks and slices compared to being oriented in the PH orientation when struck.
When the ball is oriented so that the preferred axis is pointing up and down on the tee (POP orientation for a preferred spin axis in the PH orientation), the ball is much less effective in correcting hooks and slices compared to being oriented in the PH orientation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0042]FIG. 1 illustrates one hemisphere of a non-conforming or non-symmetrical golf ball 10 having a first dimple pattern, hereinafter referred to as dimple pattern design 28-1, or “28-1 ball”. The dimple pattern is designed to create a difference in moment of inertia (MOI) between poles horizontal (PH) and other orientations. The dimple pattern of the 28-1 ball has three rows of shallow truncated dimples 12 around the ball's equator, in each hemisphere, so the ball has a total of six rows of shallow truncated dimples. The polar region has a first set of generally larger, deep spherical dimples 14 and a second set of generally smaller, deep spherical dimples 15, which are dispersed between the larger spherical dimples 14. There are no smaller dimples 15 in the two rows of the larger spherical dimples closest to the band of shallow truncated dimples 12. This arrangement removes more weight from the polar areas of the ball and thus further increases the MOI difference between the ball...

second embodiment

[0046]FIG. 2 illustrates one hemisphere of a ball 16 having a different dimple pattern, hereinafter referred to as 25-1, which has three rows of shallow truncated dimples 18 around the ball's equator in each hemisphere and deep spherical dimples 20 in the polar region of the ball. The deep dimples closest to the pole also have smaller dimples 22 dispersed between the larger dimples. The overall dimple pattern in FIG. 2 is similar to that of FIG. 1, but the total number of dimples is less (386). Ball 16 has the same number of truncated dimples as ball 10, but has fewer spherical dimples of less volume than the spherical dimples of ball 10 (see Table 2 below). Each hemisphere of ball 16 has 92 truncated dimples and 101 spherical dimples 20 and 22. The main difference between patterns 28-1 and 25-1 is that the 28-1 ball of FIG. 1 has more weight removed from the polar regions because the small dimples between deep dimples are larger in number and volume for dimple pattern 28-1 compared...

third embodiment

[0049]FIG. 3 illustrates a mold 23 having one hemisphere of a compression molding cavity 24 designed for making a ball having a different dimple pattern, identified as dimple pattern or ball 2-9. The cavity 24 has three rows of raised, flattened bumps 25 designed to form three rows of shallow, truncated dimples around the ball's equator, and a polar region having raised, generally hemispherical bumps 26 designed to form deep, spherical dimples in the polar region of a ball. The resultant dimple pattern has three rows of shallow truncated dimples around the ball's equator and deep spherical dimples 2 in the polar region of the ball in each hemisphere of the ball. As illustrated in FIG. 3 and shown in Table 3 below, there is only one size of truncated dimple and one size of spherical dimple in the 2-9 dimple pattern. The truncated dimples are identified as dimple #1 in Table 3 below, and the spherical dimples are identified as dimple #2 in Table 3. The 2-9 ball has a total of 336 dimp...

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Abstract

A non-conforming golf ball has a plurality of dimples formed on the outer surface of the ball in a predetermined dimple pattern, the outer surface comprising one or more first areas which include a plurality of first dimples which together have a first dimple volume and at least one second area having a dimple volume less that the first dimple volume, the first and second areas being configured to establish a preferred spin axis. The second area may be a band around the equator which has a lower dimple volume or no dimples, with the polar regions have a higher volume of dimples, creating a preferred spin axis through the poles.

Description

RELATED APPLICATIONS INFORMATION[0001]This application claims the benefit under §119(e) of U.S. Provisional Application Ser. No. 61 / 328,927 filed Apr. 28, 2010 and entitled “Nonconforming Anti-Slice Ball,” which is incorporated herein by reference in its entirety as if set forth in full.BACKGROUND[0002]1. Field of the Invention[0003]The embodiments described herein relate generally to golf balls and are specifically concerned with golf ball dimple patterns to create desired flight characteristics.[0004]2. Related Art[0005]Golf ball dimple pattern design has long been considered a critical factor in ball flight distance. A golf ball's velocity, launch angle, and spin rate is determined by the impact between the golf club and the golf ball, but the ball's trajectory after impact is controlled by gravity and aerodynamics of the ball. Dimples on a golf ball affect both drag and lift, which in turn determine how far the ball flies.[0006]The aerodynamic forces acting on a golf ball during...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A63B37/14
CPCA63B37/0006A63B37/0016B29C33/424B29L2031/546A63B37/0096A63B37/0017A63B37/0077A63B37/009A63B37/0012A63B37/00065A63B37/00773A63B37/14A63B37/00A63B37/12
Inventor FELKER, DAVID L.WINFIELD, DOUGLAS C.
Owner AERO X GOLF