93results about How to "Flying distance" patented technology

The present invention provides a golf ball comprising a golf ball body with a spherical core having one or more layers, an intermediate layer disposed outside the spherical core and a cover disposed outside the intermediate layer and a paint film formed on a surface of the golf ball body, and having a friction coefficient calculated using a contact force tester of 0.35 or more and 0.60 or less, wherein the golf ball body has specific plurality of dimples on the surface thereof, at least one layer of the spherical core is a rubber layer having a specific hardness distribution, and the rubber layer has a hardness at the outermost point which is greater than a hardness at the innermost point, and the intermediate layer has a slab hardness (Hm) which is greater than a slab hardness (Hc) of the cover.

An object of the present invention is to provide a golf ball having an improved controllability and shot feeling while maintaining a flight distance on driver shots. The present invention provides a golf ball having a core, an intermediate layer disposed around the core, and a cover disposed around the intermediate layer, wherein the core has a center and an envelope layer disposed around the center, and has a specific hardness distribution, and the intermediate layer is formed from an intermediate layer composition comprising, as a resin component, (A) a modified polyester elastomer and (B) a binary ionomer resin, and having a flexural modulus ranging from 150 MPa to 450 MPa, a maximum loss factor (tan δ) between −20° C. and 0° C. of 0.08 or less, a repulsive modulus of 55% or more, and a slab hardness ranging from 60 to 90 in JIS-hardness.

Golf ball 2 has three or more different kinds of dimples 8. The total number of the dimples 8 is 300 or more. A ratio Pn of the number of the dimples 8 with a diameter of equal to or greater than 3.40 mm to the total number is equal to or greater than 90%. The golf ball 2 meet the following formulae (I) and (II).

NL−NH≧0   (I)

NL>NHm≧NHp   (II)

NL represents the number of kinds of the dimples being located in a low latitude region ZL and having a diameter of equal to or greater than 3.40 mm, NH represents the number of kinds of the dimples being located in a high latitude region ZH and having a diameter of equal to or greater than 3.40 mm, NHm represents the number of kinds of the dimples being located in a middle latitude region ZHm and having a diameter of equal to or greater than 3.40 mm and NHp represents the number of kinds of the dimples being located in a polar region ZHp and having a diameter of equal to or greater than 3.40 mm.

The invention discloses an unmanned aerial vehicle flight landing system and method based on image processing. The system comprises an unmanned aerial vehicle and an unmanned aerial vehicle take-off and landing station. The unmanned aerial vehicle take-off and landing station comprises a carrying table arranged on the ground. A precise positioning and fixing device assisting in landing of the unmanned aerial vehicle is mounted on the carrying table. A holder is mounted on the precise positioning and fixing device assisting in landing of the unmanned aerial vehicle. A camera is mounted on the holder, and a camera lens of the camera faces upward. The camera and the holder are both connected with a computer. The computer controls rotation of the holder to drive the camera to rotate, and accordingly the shooting direction of the camera is adjusted. The computer controls the camera to shoot pictures. The computer is in communication connection with the unmanned aerial vehicle through a first wireless data transmission module. The computer is further connected with a display terminal. The unmanned aerial vehicle flight landing system and method have the beneficial effect that an all-weather centimeter-level precise landing function of the multi-rotor unmanned aerial vehicle is achieved based on image processing by adoption of a multistratum PID control technology.

At all points Pa included in zone “A” away from the central point of the core 4 at a distance of 1 mm or greater and less than 5 mm, the following mathematical expression (I) is satisfied, and at any point Pb included in zone “B” away from the central point of the core 4 at a distance of 5 mm or greater and 10 mm or less, the following mathematical expression (II) is satisfied.

Ha2−Ha1<5  (I)

Hb2−Hb1≧5  (II)

Ha1 represents the hardness at a point Pa1 that is located inside the point Pa along the radial direction and away from the point Pa at a distance of 1 mm, and Ha2 represents the hardness at a point Pa2 that is located outside the point Pa along the radial direction and away from the point Pa at a distance of 1 mm. Hb1 represents the hardness at a point Pb1 that is located inside the point Pb along the radial direction and away from the point Pb at a distance of 1 mm, and Hb2 represents the hardness at a point Pb2 that is located outside the point Pb along the radial direction and away from the point Pb at a distance of 1 mm.

A method for manufacturing a golf ball showing a great flight distance on driver shots for includes the steps of: preparing a rubber composition containing a base rubber, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, a crosslinking initiator and a carboxylic acid and/or a salt thereof; heat pressing the rubber composition at a press temperature ranging from t-40° C. to t-15° C. to mold a spherical core, wherein t ° C. is a one-minute half-life temperature of the crosslinking initiator; and forming at least one cover layer covering the spherical core.

An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, (d) a carboxylic acid having 1 to 14 carbon atoms and/or a salt thereof, and (e) a halogen-substituted thiophenol and/or a metal salt thereof as an organic sulfur compound, provided that the rubber composition further contains (f) a metal compound in the case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent.

An object of the invention is to provide a golf ball excellent in the durability at the normal and low temperatures, flight distance, direction stability and shot feeling on the shots. The present invention provides a golf ball comprising: a core consisting of a center having a diameter of 35 mm or less and a surrounding layer covering the center; at least one intermediate layer covering the core, said intermediate layer having a thickness ranging from 0.5 mm to 1.2 mm and a density of 1.10 g/cm³ or more; and a cover covering the intermediate layer and having a thickness ranging from 0.3 mm to 1.0 mm, wherein the cover is formed of a cover composition that has a slab hardness ranging from 65 to 75 in Shore D hardness and contains as a resin component; (A) a polyamide resin composition having a flexural modulus in a range from 700 MPa to 4,000 MPa and a melt flow rate (240° C., 2.16 kg) of 5.0 g/10 min or more; (B) at least one member selected from the group consisting of an ethylene-(meth)acrylic acid binary copolymer, a metal-neutralized product of the binary copolymer, an ethylene-(meth)acrylic acid-(meth)acrylic acid ester ternary copolymer, and a metal-neutralized product of the ternary copolymer; and (C) a fluidity improving agent.

The turbine system for wind and/or water power, wherein the radial turbines have a rotor which can rotate about an axis and comprises one or more turbine blades, wherein the turbine blades are aligned parallel to the rotor, wherein the turbine blades are arranged within a cylindrical shell, which is arranged concentrically around the axis and has an outer radius R1 and an inner radius R2, is characterized in that the turbine blades have a specific geometry and in that two radial turbines (1, 2) which are aligned alongside one another and parallel are arranged, which radial turbines (1, 2) are connected to one another and can pivot about a pivoting axis (15) parallel to the turbine axes (18), wherein the pivoting axis and the guide surfaces (3, 4) are not located on the connecting line between the turbine axes, and are both located on the same side of the connecting line. It is proposed that the abstract be published without any drawing.

The invention provides a forest extinguishment rocket projectile. The forest extinguishment rocket projectile mainly comprises a fuze, an extinguishment device, a solid rocket engine and an empennage, wherein the fuze comprises a proximity module transparent shade, a fuze base, a circuit board, a power supply and a safety mechanism; the extinguishment device comprises a priming port plug, a front plugging cover, a pull rod, a center tube, a throwing ammunition body, a projectile body shell, an extinguishing agent and a rear plug; and in the extinguishment rocket projectile, the solid rocket engine is used as a power device, so the projectile body has a far flying distance and high placement concentration, and can be thrown to a fire point for extinguishment remotely, quickly and accurately. The front plugging cover and the rear plugging cover are connected together by using the pull rod, so that flyoff of the throwing ammunition body during the action can be avoided; meanwhile, the extinguishing agent can be transversely scattered in a large area. As a plurality of thin slots are processed on the projectile body shell, the projectile body is detonated and the shell can be cracked from the thin slots, and the extinguishing agent can be thrown and scattered uniformly.

Golf ball 2 has a center 8, a mid layer 10 and a cover 6. The base polymer of the mid layer 10 includes an ionomer resin as a principal component. The surface hardness H1s of the center 8 is greater than the hardness H2 of the mid layer 10. The Shore D hardness H3 of the cover 6 is equal to or greater than 57. The weight W2 of the mid layer 10 is greater than the weight W3 of the cover 6. The total weight (W2+W3) of the weight W2 of the mid layer 10 and the weight W3 of the cover 6 is 8.4 g or greater and less than 12.0 g. The total volume (V2+V3) of the volume V2 of the mid layer 10 and the volume of the cover 6 is equal to or less than 10.0 cm³.

The present invention provides a golf ball having a center and at least one intermediate layer covering the center and a cover, wherein at least one of the intermediate layer is formed from a composition comprising, as a resin component, (A) a polyamide copolymer containing (a-1) a polymerized fatty acid, (a-2) sebacic acid and/or azelaic acid, (a-3) a polyamine component as an essential component, and (B) at least one member selected from (b-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid, (b-2) a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid, (b-3) a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid and an α,β-unsaturated carboxylic acid ester, and (b-4) a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid and an α,β-unsaturated carboxylic acid ester.

An object of the present invention is to provide a golf ball having a high resilience with a high spin rate on the approach shots. The present invention provides a golf ball comprising a constituting member that is formed from a polyurethane composition containing a polyurethane elastomer as a resin component, the polyurethane composition satisfying properties of a rebound resilience of 54% or more and a shear loss modulus G″ of 5.03×10⁶ Pa or less when measured at the conditions of the temperature of 0° C., the oscillation frequency of 10 Hz, and in a shear mode using a dynamic viscoelasticity measuring apparatus.

The invention relates to a flapping wing device, in particular to a novel high-performance bionic bird flapping wing device capable of being applied to sports, entertainment and military science. The novel high-performance bionic bird flapping wing device comprises two sets of devices on the left and right sides, wherein each set of devices is composed of a gear, a crank, a connecting rod, a main wing and a stander. When the novel high-performance bionic bird flapping wing device works, the left gear rotates, the right gear meshed with the left gear also rotates; the rotating left gear drives the left crank to rotate, the left connecting rod swings along with the rotation, and the left main wing is then driven to swing vertically; a left auxiliary wing swings vertically under the driving of a left main wing side rod; the rotating right gear drives the right crank to rotate, the right connecting rod swings along with the rotation, and the right main wing is driven to swing vertically; a right auxiliary wing swings vertically under the driving of a right main wing side rod, and thus the integral flapping movements of the left and right wings are realized. For the novel high-performance bionic bird flapping wing device, the auxiliary wings and the main wings are organically combined, so that the size is small, the structure is compact, and the flying distance is long. The novel high-performance bionic bird flapping wing device is particularly suitable for the industries of sports, entertainment, military science and the like.