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:
Dec. 04, 2001
Filed:
Mar. 16, 1999
Jean-Pierre Gautier, Aulnay-Ss-Bois, FR;
Cedric Leboisne, Paris, FR;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A force transmission and amplification device for a brake system comprising a pedal (,) and an output rod (,) for transmitting by way of the output rod (,) an output force (F,) having a higher intensity than an input force (F,) applied to pedal (,). An input rod (,) is secured to the pedal (,) for supplying a primary piston (,) located in a first diameter (D,) of primary cylinder (,) to delimit a primary chamber (,) retaining a fluid. A second piston (,) secured to the output rod (,) is located in a second diameter (D,) of a second cylinder (,) to delimit a secondary chamber (,). The primary chamber (,) is connected to the secondary chamber (,) to immediately supply pressurized fluid which acts on the second piston (,) to develop the output force (F,).