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:
Jun. 01, 2004
Filed:
Aug. 08, 2002
Richard A. Nix, Ortonville, MI (US);
Michael James Woodard, Utica, MI (US);
Timothy M. Dangel, Oxford, MI (US);
Automotive Products (USA), Inc., Auburn Hills, MI (US);
Abstract
A hydraulic clutch actuator system having a vibration damper in the system including an elastomeric diaphragm and a steel diaphragm. One face of the elastomeric diaphragm is in communication with fluid in the system so that the diaphragm may deflect in response to low frequency system vibrations to effect damping of these vibrations. The steel diaphragm is positioned generally parallel to and proximate the other face of the elastomeric diaphragm so as to form a back-up for the elastomeric diaphragm so that the elastomeric diaphragm may deform against the steel diaphragm in response to high frequency system vibrations to cause deflection of the steel diaphragm to effect damping of the high frequency vibrations. An apertured stop structure above the elastomeric diaphragm functions to limit upward excursions of the elastomeric diaphragm and further functions to maintain communication between the chamber above the elastomeric diaphragm and the damper port to the system.