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:
Sep. 02, 2014
Filed:
Nov. 07, 2012
Applicant:
Bridgestone Sports Co., Ltd., Tokyo, JP;
Inventor:
Fumiaki Sato, Chichibu, JP;
Assignee:
Bridgestone Sports Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 53/10 (2006.01); A63B 59/00 (2006.01); A63B 53/04 (2006.01);
U.S. Cl.
CPC ...
A63B 53/10 (2013.01); A63B 2209/023 (2013.01); A63B 2059/0081 (2013.01); A63B 2053/0408 (2013.01); A63B 59/0074 (2013.01);
Abstract
A golf club includes a shaft and a head, the torque of the entire length of the shaft being in a range of 3 to 5°. From viewpoints of a torsional rigidity distribution of the shaft, an integrated value of the torsional rigidity on the grip end side of the shaft is 85% or less of the integrated value of the torsional rigidity of the entire length of the shaft. The head has a distance to the center of gravity of 40 to 48 mm and a gravity center angle of 22 to 30°.