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. 12, 2009
Filed:
Dec. 19, 2006
James W. Zehnder, Ii, Tipp City, OH (US);
Michael W. Hurtt, Waynesville, OH (US);
Chris C. Carter, Kettering, OH (US);
James W. Zehnder, II, Tipp City, OH (US);
Michael W. Hurtt, Waynesville, OH (US);
Chris C. Carter, Kettering, OH (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A brake apply master cylinder includes a body and a piston assembly. The body includes a bore. The bore has a longitudinal axis, a closed front end, a primary fluid outlet fluidly connectable to a primary brake circuit, and a secondary fluid outlet fluidly connectable to a secondary brake circuit. The piston assembly includes a single brake apply piston positioned in the bore. The piston assembly fluidly divides the bore into a primary fluid chamber in fluid communication with the primary fluid outlet and a secondary fluid chamber in fluid communication with the secondary fluid outlet. Another brake apply master cylinder includes a body, a piston assembly, and a return spring assembly. The return spring assembly is positioned in the bore of the body and extends from the closed front end of the bore to a return-spring seat of a single brake apply piston of the piston assembly.