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:
Jun. 19, 1979
Filed:
Jun. 23, 1977
Applicant:
Inventor:
John W Riddel, Fenton, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ; F16K / ; F16K / ;
U.S. Cl.
CPC ...
180108 ; 91453 ; 180109 ; 251 67 ; 251130 ;
Abstract
A two-position dump valve for use in a vacuum powered or pressure differential powered cruise control system. The dump valve is closed upon energization of a solenoid, provided the brake pedal is in the brake release position. It opens when the brake pedal is moved to actuate the vehicle brakes.