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:
May. 24, 2005
Filed:
Oct. 30, 2003
Wayne Hewitt, La Porte, IN (US);
Joseph M Whicker, Elkhart, IN (US);
Richard Straw, Jones, MI (US);
Ryan Hurlbutt, Niles, MI (US);
Wayne Hewitt, La Porte, IN (US);
Joseph M Whicker, Elkhart, IN (US);
Richard Straw, Jones, MI (US);
Ryan Hurlbutt, Niles, MI (US);
Robert Bosch Corporation, Broadview, IL (US);
Abstract
A tandem brake booster has a housing defined by a front shell that is joined to a rear shell to create an interior cavity. The interior cavity is divided by first and second diaphragm assemblies that are separated by a partition member to respectively isolate a first chamber from a second chamber and a third chamber from a fourth chamber. The first and third chambers are connected to fluid having a substantially constantly first pressure while the second and fourth chambers are connected to selectively receive the fluid at the first pressure or fluid at a second pressure. The partition member is characterized by a disc with a cylindrical body extending from a ledge formed on a peripheral surface of the disc and a flange located on the cylindrical body between the ledge and an end face of the cylindrical body.