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:
Aug. 19, 1997
Filed:
Mar. 22, 1995
Applicant:
Inventors:
Yuichi Aizawa, Tokyo, JP;
Shoichi Dekura, Tokyo, JP;
Assignee:
Daiwa Seiko, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
473345 ; 473346 ; 473344 ; 473328 ;
Abstract
In a metal golf club head, a recess portion with a closed bottom is formed in a bottom surface of a hollow shell cast of metal, and a sole plate, made of metal greater in specific gravity than the shell, is received in and secured to the recess portion in such a manner that the sole plate lies flush with that portion of the bottom surface disposed adjacent to a peripheral edge of the recess portion. The sole plate can withstand an impact produced when hitting a ball, and is prevented from becoming disengaged from the shell.