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. 13, 2005
Filed:
Aug. 01, 2001
Applicant:
Herfried Lammer, Lauterach, AT;
Inventor:
Herfried Lammer, Lauterach, AT;
Assignee:
Head Sport Aktiengesellschaft, Kennelbach, AT;
Primary Examiner:
Int. Cl.
CPC ...
A63B049/02 ; A63B049/08 ;
U.S. Cl.
CPC ...
Abstract
According to one embodiment of the invention, a sports racket includes a racket frame comprising a head portion, handle portion and a throat portion joining the head portion to the handle portion. The racket frame also comprises a self-powered piezoelectric damping system for damping vibrations of the racket during play. The self-powered piezoelectric damping system comprises at least one transducer laminated to the racket and at least one circuit located within the racket handle portion and electrically connected to the at least one transducer.