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:
Jul. 15, 1997
Filed:
Jun. 24, 1996
Applicant:
Inventor:
John Russell Coleman, Dayton, OH (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
60562 ; 60584 ; 60585 ; 60588 ;
Abstract
A dual acting master cylinder and reservoir assembly includes a pair of bayonets on the reservoir that are received within primary and secondary bosses of the master cylinder. The bayonets each include disks within their central openings wherein each disk has a control orifice for controlling the pressure rise in the associated primary and secondary braking circuits during the initial filling process of the master cylinder and reservoir assembly. Through means of the control orifices, the initial filling process of the braking system through the reservoir is effected while minimizing pressure differential establishment across the secondary piston.