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:
Nov. 25, 1986
Filed:
Aug. 05, 1985
Josef Steinberger, Dusseldorf, DE;
Paul Forkardt GmbH & Co. KG, Dusseldorf, DE;
Abstract
A rotary chuck having a plurality of clamping elements for clamping a respective workpiece. The clamping elements are interchangeable for adaptation of different dimensions of the workpieces, and can be actuated by a force operation via a direction-changing chuck or drive. At least one of the clamping elements is provided with a tension detector. So that the tension detector can always be ready for measuring, and in order to avoid adulteration or error of the measured values and disturbances during transmission of the measured values due to a changing or displacement of the clamping element part which directly engages the workpiece relative to the drive members thereof, the tension detector is arranged with respect to a component which, as viewed in the direction of the force introduced from the force operation, is located after the direction-changing chuck or drive and ahead of the separating point between that clamping element part which directly engages the workpiece and the drive part for the clamping element part, which drive part remains in place during an exchange of the clamping element part in the chuck.