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:
Mar. 23, 2004
Filed:
Feb. 05, 2002
Applicant:
Inventor:
Matthias Sperber, Wachenroth, DE;
Assignee:
Ina-Schaeffler KG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23F 2/312 ;
U.S. Cl.
CPC ...
B23F 2/312 ;
Abstract
A clamping device for the releasable fastening of a part (grinding wheel ) on a shaft has a clamping nut ( ) which can be screwed onto the shaft and is intended for clamping the part in place. A chamber ( ) is provided between a pressure member (load piston ) for bearing against the part (grinding wheel ) and the clamping nut ( ), this chamber ( ) containing a hydraulic pressure medium (silicone oil ). Furthermore, an escape space ( ) which can be connected to the chamber ( ) is provided for the hydraulic pressure medium in order to remove the clamping pressure from the grinding wheel ( ).