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US 2019/0168075 A1Published application
Golf balls with aerodynamic subsurfaces
AssigneeAcushnet Company
InventorsNicholas M. Nardacci, Michael R. Madson, Chris Hixenbaugh
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Abstract
The present invention provides a golf ball having an aerodynamic subsurface for packing dimples. More particularly, the invention relates to a golf ball having an exterior surface and at least a first subsurface containing at least two dimples located solely on the subsurface and lying below the exterior surface of the golf ball. A transition zone between the exterior surface and the subsurface is disclosed having an angle of transition and a top radius and a bottom radius.
Claims21
A golf ball comprising:
- a core;
- a cover surrounding the core;
- an exterior surface provided on the cover having an exterior radius R0;
- at least a first subsurface having a first perimeter and a subsurface radius R1 and at least two dimples located solely within the first subsurface;
- and
- and a transition zone between the exterior surface and the first subsurface, the transition zone having an angle of transition and a top radius and a bottom radius,
- wherein the first subsurface is offset from the exterior surface by a value δ1 such that R1=R0−δ1 and δ1 is between about 0.003 and about 0.020 inches,
- wherein the first subsurface is spherical and concentric to the exterior surface, and
- wherein at least three dimples provided on the first subsurface adjacent the first perimeter have a dimple perimeter and at least 20 percent of the dimple perimeter is within about 0.010 inches of the first perimeter.
6 more elements
A golf ball comprising:
- a core;
- a cover surrounding the core;
- an exterior surface provided on the cover having an exterior radius R0;
- at least a first subsurface having a first perimeter and a subsurface radius R1 and at least two dimples located solely within the first subsurface;
- and
- and a transition zone between the exterior surface and the first subsurface, the transition zone having an angle of transition and a top radius and a bottom radius,
- wherein the first subsurface is offset from the exterior surface by a value δ1 such that R1=R0−δ1 and δ1 is between about 0.009 and about 0.015 inches;
- and wherein the first subsurface is spherical and concentric to the exterior surface.
5 more elements
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Dependencies are inferred from the claim text.