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US 4,568,088 AGranted
Golf club head
AssigneeSumitomo Rubber Industries, Ltd.
InventorKouichiro Kurahashi
Life of this patent
Estimating the term…
Abstract
A golf club head of a wood-type golf club comprising a wooden club head body entirely reinforced by a wood-plastic combination, in which a predetermined thickness of a high density portion is impregnated with plastics at a percentage ranging from 10 to 60% by weight, lies adjacent to a front impact face of the club head, while the remainder portion is lower in density than the high density layer.
Claims4
A golf club head having an impact front face comprising
- a wooden club head body entirely reinforced by a wood-plastic combination,
- said club head body including at a predetermined, uniform thickness a uniform high density layer extending substantially parallel to said impact front face thereof,
- said uniform high density layer being impregnated with plastics at a higher percentage than a remainder low density portion of said club head body
- said uniform thickness of said uniform high density layer being within a range from 5 to 15 mm, and
- said uniform high density layer being impregnated with plastics at a percentage ranging from 10 to 60% by weight.
2 more elements
Dependencies are inferred from the claim text.