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:
Jan. 30, 1990
Filed:
Jun. 06, 1988
Applicant:
Inventors:
Ryota Kajita, Chiba, JP;
Hidekimi Inoue, Saitama, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B / ; A63B / ;
U.S. Cl.
CPC ...
2731 / ; 273 / ; 273 802 ; 273171 ;
Abstract
Golf clubs and of the wood type have a relation between the axis of the shaft and the hitting spot on the head face thereof such that, under the assumption that the relation between the axis of the shaft and the head face both thereof in a plane squarely facing a golfer using the golf clubs is negative when the hitting spot is before the axis in the direction of ball's flight and positive when the hitting spot is after the axis in that direction, the distance y between the axis and hitting spot is greater than -3 mm and this is attributable to bending of the neck of the head, the shaft being straight.