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:
Aug. 27, 1991
Filed:
May. 31, 1989
Applicant:
Inventor:
Toshihiro Nakano, Chiryu, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
60589 ; 60562 ;
Abstract
A master cylinder is provided with an arrangement which prevents a valve from being held in a closed and inoperative position by residual pressure in the system. By preventing the valve from being held in the closed position, residual pressure can be released from the cylinder and prevent brake fluid pressure from disabling the brake system.