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:
Feb. 23, 1999
Filed:
Dec. 23, 1997
Applicant:
Inventor:
Mark D Swinford, Centerville, OH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ; A63B / ;
U.S. Cl.
CPC ...
473317 ; 473320 ;
Abstract
A golf club shaft having a spar, a tube, and a skin is formed which reduces shaft aerodynamic drag. The skin transforms in cross-sectional shape from a circular one at the grip, to a streamlined shape at the shaft tip. The spar introduces stiffness in the plane generally perpendicular to the direction of swing, thereby offsetting the effect of unequal sectional moments of inertia of the streamlined skin. Manufacturing methods are also disclosed.
Swinford, Mark. (1999). Golf club and associated manufacturing method (U.S. Patent No. 5873793). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5873793
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile