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:
Nov. 19, 1996
Filed:
Feb. 24, 1994
Applicant:
Inventors:
David L Brittingham, Bolingbrook, IL (US);
David W Repetto, Park Ridge, IL (US);
David A Pollock, Glen Ellyn, IL (US);
Assignee:
Wilson Sporting Goods Co., Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ; B65H / ;
U.S. Cl.
CPC ...
156175 ; 156169 ; 156173 ; 273 / ;
Abstract
A frame for a game racquet such as a tennis racquet is formed by helically winding a tow of filament material and thermoplastic material over an elongated mandrel to form a tube. The tube is positioned in a mold having the shape of a game racquet frame and auxiliary pieces for handle and yoke sections are added. This preform is heated to melt the thermoplastic while the interior of the tube is pressurized. The preform is then allowed to cool and harden to form the game racquet frame.