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:
Sep. 01, 1992
Filed:
Jan. 24, 1991
Applicant:
Inventors:
Assignee:
Nissan Motor Company, Limited, Yokohama City, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T / ; F15B / ;
U.S. Cl.
CPC ...
3031 / ; 3031 / ; 3031 / ; 60545 ; 60567 ; 60591 ;
Abstract
A system for controlling a fluid pressure includes a pressure modulating cylinder unit having a piston and a cylinder housing defining first and second fluid chambers separated by the piston, a cutoff valve unit for isolating the first and second chambers from a pressure source and from each other, and a motor unit for pushing and pulling the piston to vary the fluid pressure in the first chamber. When the system is used for controlling a brake fluid pressure of a vehicle, the first chamber is connected with a wheel cylinder, and the valve unit is arranged to isolate the wheel cylinder and the first and second chambers from a master cylinder.