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. 06, 1995
Filed:
May. 25, 1993
Applicant:
Inventor:
Hideaki Kawamatsu, Takarazuka, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Primary Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
273 / ; 273D / ;
Abstract
The proportion of the torsional rigidity of a base end side grip portion to that of an end side portion fitted with a club head ranges between (1:1) and (4:1). As a result, a golf club shaft arranged so as to have such a proportion of torsional rigidity is increased in the torsional angle of the base end side grip portion thereof as compared with the end side portion thereof which is fitted with the club head thereof.