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.:
Date of Patent:
Jun. 27, 1995
Filed:
Jun. 23, 1993
Applicant:
Inventor:
Harunobu Kusumoto, Tokyo, JP;
Assignee:
Daiwa Golf Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
273 / ; 273 / ; 273D / ;
Abstract
A shaft for a golf club includes a tubular main body made of a fiber-reinforced resin and being 10 mm or less in the outside diameter of the tip of the body. The outside circumferential surface of the main body is tapered from the butt thereof to the tip thereof at a ratio of 0/1,000 to 4/1,000 so as to be nearly uniform in diameter. The thickness of the main body is gradually increased from the tip thereof to the butt thereof. The golf club having the shaft, receives a low resistance of air, and has a rigidity appropriate for a powerful golfer who swings the club quickly.