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:
Dec. 10, 1991
Filed:
May. 03, 1990
Applicant:
Inventor:
Stephen J Davis, Yardley, PA (US);
Assignee:
Prince Manufacturing, Inc, Lawrenceville, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
273 / ; 273 / ;
Abstract
A badminton racquet includes a head, a shaft, and a Y-joint connecting the head to the shaft. The Y-joint geometry offers improved transmission of stress from the head to the shaft, and the resulting increased length of the center longitudinal strings improves power. Preferably, the frame has an improved aerodynamic profile, and a kick shaft to produce greater head speed at the point of impact.