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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 5967905 B1

PDFFull Text
Date of Patent:
Oct. 19, 1999

Filed:

Feb. 17, 1998

Golf club head and method for producing the same

Applicant:
Inventors:

Norihiko Nakahara, Hiratsuka, JP;

Shinji Yamamoto, Hiratsuka, JP;

Shigeki Ono, Okegawa, JP;

Toru Yoshida, Okegawa, JP;

Assignees:

The Yokohama Rubber Co., Ltd., Tokyo, JP;

Mitsubishi Materials Corporation, Tokyo, JP;

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.

Primary Examiner:

Sebastiano Passaniti

Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
473345 ; 473349 ; 473409 ;
Abstract

A golf club head comprises an outer titanium club-head shell, and a titanium sole portion integrally coupled to the outer club-head shell. A weight fitting hole is bored in the sole portion, and a plurality of cutouts are formed in the inner peripheral edge portion of the fitting hole. A weight made of metal having a specific gravity higher than that of titanium is inserted into the fitting hole, and the weight is fixed to the sole portion after press-deformed so that its outer peripheral edges are press-fitted into the respective cutouts. A method for producing a golf club head comprises the steps of molding the outer club-head shell from titanium, molding the sole portion having the weight fitting hole from titanium, forming the plurality of cutouts in the inner peripheral edge portion of the fitting hole of the sole portion, inserting the weight made of metal having a specific gravity higher than that of titanium into the fitting hole, fixing the weight to the sole portion by press-deforming the weight in such a way as to press-fit the outer peripheral edges of the weight into the respective cutouts, and coupling the outer club-head shell and the sole portion integrally by welding.

Find Patent Forward Citations

Nakahara, Norihiko. (1999). Golf club head and method for producing the same (U.S. Patent No. 5967905). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5967905

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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