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. 06, 2001
Filed:
Jul. 16, 1999
Hans-Michael Weller, Marbach, DE;
Hainbuch GmbH Spannende Technik, Marback, DE;
Abstract
The clamping apparatus (,) has a clamping ring (,) of an elastomer, which has a U-shaped cross section. The clamping ring (,) is seated in a recess (,) in a holding device (,) having parallel side walls. The recess (,) can be connected via a connecting line (,) to a hydraulic or pneumatic pressure source. The outside of the web part (,) of the U-profile acts as a clamping surface (,). Embedded in the area of this clamping surface is a number of clamping elements (,) made of a material of higher strength, in which at least that envelope line which faces away from the clamping surface (,) is exposed. The clamping elements (,) have the same axial extent as the clamping ring (,). One of the side walls of the recess (,) is formed by a clamping part (,), which is part of a clamping device (,) and is guided axially displaceably on the holding device (,) and is sealed off with respect to the latter by means of a circumferential seal element (,). The clamping part (,) is coupled to a power drive (,) which acts in the axial direction. The clamping apparatus (,) is considered both for external clamping and for the internal clamping of a workpiece.