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:
Jan. 09, 2007
Filed:
Jun. 16, 2004
Applicants:
Roland Bley, Buehl, DE;
Matthias Zink, Ottenhoefen, DE;
Inventors:
Roland Bley, Buehl, DE;
Matthias Zink, Ottenhoefen, DE;
Assignee:
Luk Lamellen Und Kupplungsbau Beteiligungs KG, Buehl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 25/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hydraulic system in a motor vehicle for operating a friction clutch is described, including a slave cylinder acting upon a spring plate of the clutch, and a manually or automatically operated master cylinder acting upon the slave cylinder. The hydraulic system includes a two-stage spring device.