초록 ▼

A dimple pattern for a golf ball with a thermoset polyurethane cover is disclosed herein. The dimple pattern has multiple sets of dimples, each set of dimples having a different diameter. A preferred set of dimples is seven different dimples. The dimples may cover as much as eighty-six percent of th

A dimple pattern for a golf ball with a thermoset polyurethane cover is disclosed herein. The dimple pattern has multiple sets of dimples, each set of dimples having a different diameter. A preferred set of dimples is seven different dimples. The dimples may cover as much as eighty-six percent of the surface of the golf ball. The unique dimple pattern allows a golf ball with a thermoset polyurethane cover to have shallow dimples with steeper entry angles. The unique dimple pattern also allows a golf ball with a thermoset polyurethane cover to have greater low speed lift with a lower high speed drag.

대표청구항 ▼

[ I claim as my invention:] [1.]1. A golf ball having a thermoset polyurethane cover with a surface thereon, the golf ball comprising:a plurality of different sets of dimples disposed on the surface, each of the different sets of dimples having a different diameter than any other set of dimples, whe

[ I claim as my invention:] [1.]1. A golf ball having a thermoset polyurethane cover with a surface thereon, the golf ball comprising:a plurality of different sets of dimples disposed on the surface, each of the different sets of dimples having a different diameter than any other set of dimples, wherein the chord depth of each of the dimples of the plurality of different sets of dimples is between 0.0045 inch and 0.0060 inch, wherein the chord depth is the depth to the bottom of the dimple from an imaginary horizontal plane extending from an inflection point of the curvature of the dimple, and wherein each of the dimples of the plurality of different sets of dimples has an entry angle, and the entry angle of each dimple is between 13 and 16 degrees, the entry angle is defined between the intersection of a tangent extending outward from a first inflection point of the curvature of the dimple and a tangent extending outward from a second inflection point at the start of the edge radius of each dimple.