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US 5,707,302 AGranted
Iron-style golf club
OwnerJoseph A. Leon, Richard F. Zopfinventors
Life of this patent
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OwnerJoseph A. Leon, Richard F. Zopfinventors
Estimating the term…
An improved, iron-style golf club, which comprises a substantially perimeter weighted clubhead, including an exceptionally hard coating, which is metallurgically bonded to the front face of the clubhead. The rear face of the club comprises concentric recesses substantially co-located at the center of gravity of the clubhead. The recesses are sequentially filled with a variable amount of elastomer material, which is chemically bonded within the recesses. The elastomer acts as both a shock absorber to minimize the shock experienced when the superhard clubface impacts a golf ball and simultaneously acts as a swingweighting medium to variably adjust the swingweight of the club.
An improved golf club comprising a golf club head including an exceptionally hard clubface combined with a combination variable swingweight adjustment-shock absorption system to allow for swingweight adjustment and to absorb any excess shock experienced when said exceptionally hard face impacts a golf ball, said variable swingweight system substantially co-located at the location of the center of gravity of said club such that the swingweight of said club can be adjusted without substantially affecting the center of cavity of said club, wherein said combination swingweight adjustment-shock absorption system comprises an ultraviolet (UV) light curable elastomer system, which can be added to a rear face of said clubhead an any number of a plurality of concentric recesses in said rear face of said clubhead, said recesses being substantially co-located with the location of said center of gravity of said clubhead.
A method of variably adjusting the swingweight of a golf club comprising applying an ultraviolet (UV) light curable primer to a rear surface of a golf club head, curing said primer by exposing said rear surface of said golf club head to a UV light source for a short period of time, applying a variable quantity of a UV light curable top coat to said rear surface of said golf club head on top of said primer, said quantity of top coat being selected to coincide with the amount of weight desired to be added to said golf club head, and curing said top coat by exposing said top coat to a UV light source.
An improved golf club comprising a golf club head including an exceptionally hard clubface in combination with a variable swingweight adjustment-shock absorption system to allow for swingweight adjustment and to absorb any excess shock experienced when said exceptionally hard face impacts a golf ball, wherein said variable swingweight adjustment--shock absorbtion system comprises a plurality of concentric recesses located in a rear surface of said club head, said recesses being substantially co-located at the location of the center of gravity of said club head and incrementally filled with a polymer material such that the swingweight of said club can be adjusted without substantially affecting the location of the center of gravity of said golf club.
Dependencies are inferred from the claim text.