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. 28, 2010
Filed:
Dec. 05, 2007
Yannick Nen, Arpajon, FR;
Olivier Bernadat, Le Perreux, FR;
Bruno Beylerian, Louvres, FR;
Omar Brahmi, Paris, FR;
Yannick Nen, Arpajon, FR;
Olivier Bernadat, Le Perreux, FR;
Bruno Beylerian, Louvres, FR;
Omar Brahmi, Paris, FR;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A pneumatic brake boostercomprising: a sealed structurecomprising a rigid casingforming a funnelfurnished with an opening and a movable walldividing the sealed structureinto a low-pressure chamberand a working chamber, a pneumatic pistoncomprising a bossfixedly attached to the movable walland mounted so as to slide in the funnel opening, a valve elementhoused in the bossand a sealpositioned between the bossand the funnel, an input rodand an output rodcoupled on either side of the pneumatic piston, and a return springto return the pneumatic pistonto a rest position, the return springbeing placed in the low-pressure chamberbetween an internal surfaceof the rigid casing and the pneumatic piston, and a force sensorplaced in the low-pressure chamberand subjected to the pressure variations of the return spring