Hybrid golf club
First Claim
1. A golf club head comprising:
- a body made of a first material having a front face of variable stiffness, and a rear cavity extending rearward from the front face;
a composite core comprised of a second material less dense and more flexible than the first inserted into the rear cavity;
the composite core comprising a plurality of unidirectional carbon fiber layers, with horizontal direction layers alternating with vertical direction layers;
the composite core inflated and expanded by a pressurized gas wherein at least a portion of the composite core biasly juxtaposes against the front face to form a hollow body having an internal volume between 35 cc to 50 cc.
1 Assignment
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Accused Products
Abstract
A hybrid golf club having a hollow club head construction including a lightweight composite core inserted into a club head cavity and juxtaposed against a front face by compressed gas to provide support to the front face therein. The core material is less dense and having greater flexibility than the front face. The front face has a variable stiffness so as to create a variable Coefficient of Restitution (COR) across the face, therein normalizing the hitting area over a greater portion of the face. The composite core supports the front face to provide a COR from about 0.8 in the middle of the face to about 0.9 in the outer section. The body of the club head has at least one opening wherein the composite core is visible and provides the shell for that portion of the club head. The composite core comprises a plurality of unidirectional layers with horizontal oriented layers alternating with vertical oriented layers to provide extra strength.
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Citations
14 Claims
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1. A golf club head comprising:
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a body made of a first material having a front face of variable stiffness, and a rear cavity extending rearward from the front face;
a composite core comprised of a second material less dense and more flexible than the first inserted into the rear cavity;
the composite core comprising a plurality of unidirectional carbon fiber layers, with horizontal direction layers alternating with vertical direction layers;
the composite core inflated and expanded by a pressurized gas wherein at least a portion of the composite core biasly juxtaposes against the front face to form a hollow body having an internal volume between 35 cc to 50 cc. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification