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:
May. 13, 2014
Filed:
Nov. 11, 2009
Stephan Gast, Schwabsoien, DE;
Stefan Bonerz, Kaufbeuren, DE;
Wolfgang Bechteler, Ebenhofen, DE;
Ott-Jakob Spanntechnik GmbH, Lengenwang, DE;
Abstract
In the case of a tool clamping device, in particular, for an operating spindle of a processing machine, with an activation element () that can be moved by a drive between a first position, in which the tool clamping device is located in a clamped position, and a second position, in which the tool clamping device is located in a released position, a sensor is present in the form of at least one electrical component for detecting a position of the activation element (). The sensor is integrated structurally into the tool clamping device and at least one section of the activation element () directly forms a component of the one or more electrical components, wherein its position influences an electrical property of this component. The component can be an electrical switch whose closed state depends on the position of the activation element () in that at least one section of the activation element () is electrically conductive and forms a contact electrode of the switch or a part of such an electrode. However, it could also be a capacitor or an inductor.