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. 20, 2018
Filed:
Jul. 22, 2014
Lucas Automotive Gmbh, Koblenz, DE;
Peter Stahl, Bad Neuenahr-Ahrweiler, DE;
Boris Kuhnert, Lahnstein, DE;
Christian Damrau, Dahlheim, DE;
Christian Tharr, Boppard, DE;
Dietrich Podzuweit, Dieblich, DE;
Maria Heinemann, Bad Bodendorf, DE;
Martin Brandt, Waldesch, DE;
Nong Dang, Koblenz, DE;
Michael Schog, Mertloch, DE;
Lucas Automotive GmbH, Koblenz, DE;
Abstract
A disc brake for a motor vehicle, wherein it is possible to displace the actuating piston in the housing both by hydraulic pressure activation of a hydraulic chamber formed in the housing and via a mechanical actuator, wherein the sealing ring is accommodated in an annular groove formed in the housing. Provision is made here for the annular groove to have a groove floor, which runs substantially parallel to the longitudinal axis of the piston, and two groove walls, which adjoin the groove floor, wherein—as seen in the direction of the longitudinal axis of the piston—a first groove wall is directed away from the hydraulic chamber and a second groove wall is directed towards the hydraulic chamber, wherein the first groove wall merges into the groove floor via a rounded or bevelled transition region at a varying distance from the longitudinal axis of the piston.