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:
Sep. 04, 2012
Filed:
Oct. 21, 2010
Stefan Mohr, Dornbirn, AT;
Ralf Schwenger, Weiler-Simmerberg, DE;
Johan Kotze, Wolfurt, AT;
Harald Rosenkranz, Lauterach, AT;
Stefan Mohr, Dornbirn, AT;
Ralf Schwenger, Weiler-Simmerberg, DE;
Johan Kotze, Wolfurt, AT;
Harald Rosenkranz, Lauterach, AT;
Head Technology GmbH, Kennelbach, AT;
Abstract
A ball game racket according to the present invention comprises a racket head and a racket shaft, wherein the racket head comprises a stringing having transverse strings and longitudinal strings each having a vibration length. The racket head comprises a means which reduces the vibration length of a plurality of strings on both sides of the stringing depending on the deflection of the strings. The means is attached as a separate part to the racket head.