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. 30, 2008
Filed:
May. 12, 2003
Martin Strauch, Wuppertal, DE;
Michael Abel, Radevormwald, DE;
André Müller, Wuppertal, DE;
Wera Werk Hermann Werner GmbH & Co. KG, Wuppertal, DE;
Abstract
A chuck for receiving tools () that are operated by rotating around the axis thereof, particularly screwdriver bits, and having an insertion section () which is provided with a receiving cavity () having a non-circular cross-sectional area (). The tool can be locked in the cavity () by a holding element () which is assigned to the cavity wall in order to prevent the tool from being withdrawn from the cavity (). The holding element () can be deactivated by displacing an actuating member in a form of an actuating sleeve (). The tool () rests backwards against the cavity (). The tool () can be displaced from the resting position in the direction of the opening of the cavity () by actuating the actuating sleeve (). In order to facilitate removal of the bit, the chuck also comprises components () for releasing the face () of the bit, and a magnet () which retains the bit in the cavity from the resting position.