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. 12, 2002
Filed:
Nov. 29, 1999
Martin Strauch, Wuppertal, DE;
Sylvester Rosanwo, Wuppertal, DE;
André Müller, Wuppertal, DE;
Werner Tretbar, Radevormwald, DE;
Wera-Werk Hermann Werner GmbH & Co., Wuppertal, DE;
Abstract
A clamping chuck comprising a shank which has two sleeve-like shank sections ( ), one of the sleeve-like sections ( ) on an end side thereof being coordinated to a clamping section ( ) for clamping into a drive member, and the other of the sleeve-like sections ( ) on its end side being coordinated to a toolholder ( ) for mounting a tool, in particular a screwdriver bit ( ). The two sleeve-like shank sections ( ), by a torsion section ( ) formed by a torsion member ( ) coordinated to cavities of the shank sections, being twistable with respect to one another about a stop-limited angular distance (a-b), wherein the torsion section ( ) is arranged between two hexagon sections of the torsion member ( ), by which hexagon sections the torsion member is fitted without play into hexagon profile sections in the cavities ( ) of the sleeve-like shank sections ( ), and the torsion member continues, as one material integral piece into the clamping section formed as an insertion section ( ).