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:
Jan. 03, 1978
Filed:
Aug. 13, 1976
Applicant:
Inventor:
Noriakira Ishigami, Chiryu, JA;
Assignee:
Aisin Seiki Kabushiki Kaisha, , JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
303 / ; 188349 ;
Abstract
A brake pressure failure warning system for use with a split or dual type braking system having two brake lines, includes a stepped piston associated with an electrical warning switch and supplied with brake pressure from both of the brake lines, a proportioning valve disposed within the rear wheel brake line, and three fluid chambers each fluidically connected with the stepped piston or the proportioning valve. When either one of the three fluid chambers is subjected to a hydraulic failure, the stepped piston is axially moved so as to actuate the warning switch.