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US 12,296,229 B2Granted
Dual core golf balls having reduced driver spin
AssigneeAcushnet Company
InventorDouglas E. Jones
Life of this patent
Estimating the term…
Abstract
Dual component cores having positive hardness and compression gradients and golf balls including these cores are disclosed. The hardness, compression, and diameter relationships in the core assemblage components help to reduce the spin rate of the ball off the driver while still providing desirable performance characteristics in and around the green.
Claims20
A golf ball, comprising:
- a core assemblage comprising:
- a center having a geometric center hardness H1 and a surface hardness H2, a diameter D1, and a SCDI compression C1 ranging from about 120 to about 160 SCDI, wherein H1 is about 50 percent to about 85 percent of H2;
- and
- an outer core layer disposed about the inner core layer and having a surface hardness H3, a diameter D2, wherein the core assemblage has a SCDI compression C2 ranging from about 200 to about 240 SCDI, and wherein H2 is about 70 percent to about 98 percent of H3 and C1 is about 60 percent to about 75 percent of C2;
- a layer disposed about the core assemblage;
- and
- a cover layer disposed about the layer.
4 more elements
A golf ball, comprising:
- a core assemblage comprising:
- a center having a geometric center hardness H1, a surface hardness H2, a diameter D1, and a SCDI compression C1 ranging from about 120 to about 160 SCDI;
- and
- an outer core layer disposed about the center and having a surface hardness H3, a diameter D2, wherein the core assemblage has a SCDI compression C2 ranging from about 200 to about 240 SCDI,
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- and wherein C1 is about 60 percent to about 75 percent of C2;
- a layer disposed about the core assemblage to form an intermediate ball;
- and
- a cover layer disposed about the intermediate ball.
22 more elements
A golf ball, comprising:
- a core assemblage comprising:
- a center having a geometric center hardness H1, a surface hardness H1, a diameter D1, and a SCDI compression C1 ranging from about 120 to about 160 SCDI;
- and
- an outer core layer disposed about the center and having a surface hardness H3, a diameter D2, wherein the core assemblage has a SCDI compression C2 ranging from about 200 to about 240 SCDI, wherein H1 is in the range of about 60 to about 80 Shore C, H2 is in the range of about 70 to about 90 Shore C, and H3 is in the range of about 80 to about 100 Shore C to provide a positive hardness gradient from the center to the outer core layer, and wherein C1 is about 60 percent to about 75 percent of C2;
- an intermediate layer disposed about the core assemblage to form an intermediate ball;
- and
- a cover layer disposed about the intermediate ball.
4 more elements
Dependencies are inferred from the claim text.