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. 25, 2002
Filed:
Apr. 25, 2000
Applicant:
Inventors:
Thomas W. Preece, San Diego, CA (US);
Herb Reyes, Laguna Niguel, CA (US);
Assignee:
Callaway Golf Company, Carlsbad, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 4/920 ; B29C 4/310 ; B29C 7/044 ;
U.S. Cl.
CPC ...
B29C 4/920 ; B29C 4/310 ; B29C 7/044 ;
Abstract
An improved shaft for a golf club and methods of manufacturing the same. One or more layers of a loaded film are used to define in part the overall weight, swing weight, and/or balance point of a golf club shaft, without significantly affecting the flexibility and/or torsional characteristics of the shaft. A set of plies of pre-preg composite fiber sheet and loaded film may be wrapped in a predetermined manner around a mandrel, placed in a mold, and heated for a predetermined period of time to form a shaft for a golf club.