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US 2025/0360360 A1Published application
Golf ball
AssigneeAcushnet Company
InventorsCourtney N. Engle, John S. Dytko
Life of this patent
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Abstract
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.
Claims24
A golf ball comprising at least a core and a cover,
- the golf ball having a weight of 1.600 ounces-1.620 ounces and a diameter of 1.680 inches-1.700 inches, the core having a weight of at least 1.245 ounces and a coefficient of restitution of at least 0.785, and
- the cover comprising a plurality of dimples arranged in a dimple pattern having a drag coefficient (CD), a lift coefficient (CL), and an integrated drag area (DA) defined by:
- DA
- =
- ∫
- 225
- ,
- 000
- 160
- ,
- 000
- C
- D
- (
- Re
- )
-
- dRe
- where CD(Re) is established at a launch condition 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;
- and
- wherein CL≥0.115 at a Reynolds number of 240,000 and a spin ratio of 0.060.
18 more elements
A golf ball comprising at least a core and a cover,
- the golf ball having a weight of 1.600 ounces-1.620 ounces, a diameter of 1.680 inches-1.700 inches, a coefficient of restitution of at least 0.800, an initial velocity of at least 250 feet/second, and a compression of at least 80;
- the core has a weight of at least 1.245 ounces, a coefficient of restitution of at least 0.790, and a diameter of at least 1.525 inches;
- the cover comprising a plurality of dimples arranged in a dimple pattern having a drag coefficient (CD), a lift coefficient (CL), and an integrated drag area (DA) defined by:
- DA
- =
- ∫
- 225
- ,
- 000
- 160
- ,
- 000
- C
- D
- (
- Re
- )
-
- dRe
- where CD(Re) is established at a launch condition 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;
- CL≥0.115 at a Reynolds number of 240,000 and a spin ratio of 0.060;
- and
- CL≤0.200 at a Reynolds number of 185,000 and a spin ratio of 0.105;
- and
- the drag coefficient and the lift coefficient at a Reynolds number of 225,000 and a spin ratio of 0.070 have the following relationship:
- 1.400≤CD/CL<2.000.
23 more elements
Dependencies are inferred from the claim text.