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. 03, 2009
Filed:
Mar. 08, 2005
Applicants:
Gary C. Fulks, Dayton, OH (US);
Douglas E. Poole, Dayton, OH (US);
Timothy A. Haerr, Enon, OH (US);
Inventors:
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 13/74 (2006.01); B60T 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pressure locking master cylinder including a fluid reservoir for storing a hydraulic fluid, a housing, a piston slidably received within the housing and defining a working chamber and a blocking chamber, wherein the blocking chamber is in fluid communication with the reservoir, and a valve positioned between the blocking chamber and the reservoir, the valve being adapted to selectively trap the hydraulic fluid within the blocking chamber to lock the piston in a position with respect to the housing.