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. 31, 2015
Filed:
Jun. 11, 2010
Olivier Bernadat, Le Perreux, FR;
Marc Noblet, Paris, FR;
Julien Gateau, Gentilly, FR;
François Gaget, Saint Leu d'Esserent, FR;
Marc Rodriguez, Jouy le Moutier, FR;
Olivier Bernadat, Le Perreux, FR;
Marc Noblet, Paris, FR;
Julien Gateau, Gentilly, FR;
François Gaget, Saint Leu d'Esserent, FR;
Marc Rodriguez, Jouy le Moutier, FR;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A cup for a master cylinder coming into contact with its primary piston or its secondary piston and subjected to the pressure of the brake fluid of the primary chamber and of the secondary chamber. The cup has two large grooves bordered: by a rib between the heel and the first groove, by a rib between the first groove and the second groove, by a rib between the second groove and the small grooves, these ribs being in protrusion relative to the cylindrical surface of the heel in the mounted position of the cup in order to separate the heel from the surface of the piston and form, between the heel and the surface of the piston, a gap with a film of brake fluid. Master cylinder notably a tandem master cylinder fitted with such cups.