Bi-metallic golf club head with single plane interface
First Claim
1. A golf club head, comprising:
- an upper metal piece defining an upper engagement surface, the upper engagement surface lying substantially entirely in a single plane;
a hollow lower metal piece defining a lower engagement surface positioned flush against the upper engagement surface to define a substantially single-plane interface between the lower and upper pieces, the lower and upper pieces not interfacing with each other apart from the single-plane interface; and
at least one fastener engaged with the pieces, the upper metal piece being devoid of any weighting elements denser than the upper piece above the plane apart from the fastener.
3 Assignments
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Accused Products
Abstract
The present invention is a golf club head whose engagement surface is formed between an upper metal piece and a lower metal piece, the upper piece being composed of relatively lighter and less dense material and the lower piece being composed of relatively denser and heavier material. The union of the two pieces is along a single unitary plane. By utilizing this type of design, in which two engagement surfaces of different metallic composition are joined on a single plane to create a continuous engagement surface on the club head, the benefits of improved balance and enhanced performance that result from the lower piece being heavier than the upper piece can be achieved without the need to fit a precisely engineered weight into a precut opening in the golf club head, thus making the manufacture of golf club heads easier and more efficient.
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Citations
13 Claims
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1. A golf club head, comprising:
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an upper metal piece defining an upper engagement surface, the upper engagement surface lying substantially entirely in a single plane; a hollow lower metal piece defining a lower engagement surface positioned flush against the upper engagement surface to define a substantially single-plane interface between the lower and upper pieces, the lower and upper pieces not interfacing with each other apart from the single-plane interface; and at least one fastener engaged with the pieces, the upper metal piece being devoid of any weighting elements denser than the upper piece above the plane apart from the fastener. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A golf club head, comprising:
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an upper head piece; a hollow lower head piece; one and only one substantially planar interface therebetween; and at least one fastener engaged with the pieces, the upper piece being devoid of any weighting elements denser than the upper piece above the planar interface apart from the fastener. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification