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:
Oct. 29, 2002
Filed:
Jan. 25, 2001
Georg Gierer, Kressbronn, DE;
Uwe Rühringer, Tettnang, DE;
Jürgen Mittelberger, Weissensberg, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
Parking brake, notably for automatic transmissions of motor vehicles, which is released via hydraulic pressure acting on a spring accumulator ( ) and which is additionally held in the released state by a locking system ( ) is actuated by a magnet ( ) through which a current flows. The locking system ( ) is kept activated and thus the parking brake released until the magnet ( ) in the position in which the locking system ( ) is actuated, has a power consumption lower than necessary for loading the locking system ( ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile