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:
Jun. 28, 2011
Filed:
Feb. 01, 2007
Rob Cottey, Wolfurt, AT;
Johan Kotze, Wolfurt, AT;
Stefan Mohr, Wolfurt, AT;
Claus Müller, Feldkirch, AT;
Klaus Rambach, Peiting, DE;
Jürgen Wilke, Wolfurt, AT;
Manfred Emberger, Lochau, AT;
Harald Rosenkranz, Lauterach, AT;
Rob Cottey, Wolfurt, AT;
Johan Kotze, Wolfurt, AT;
Stefan Mohr, Wolfurt, AT;
Claus Müller, Feldkirch, AT;
Klaus Rambach, Peiting, DE;
Jürgen Wilke, Wolfurt, AT;
Manfred Emberger, Lochau, AT;
Harald Rosenkranz, Lauterach, AT;
Head Technology GmbH, Kennelbach, AT;
Abstract
A racket for ball games may include a frame which is formed by a frame profile or a hollow profile and has a racket head and a handle portion connected thereto preferably via a heart region. Two indentations that are symmetrical relative to the longitudinal axis of the racket may be provided in the heart region of the frame. A vibrating device may be arranged in each of the two indentations. The vibrating means of the racket may preferably be effective for vibrations having at least two vibration modes or degrees of freedom. Additionally or alternatively, a racket for ball games may include a frame which forms a head region for receiving strings and a handle portion for holding the racket. The frame may include one respective inwardly-facing C-profile in at least two segments of the head region.