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. 08, 1978
Filed:
Mar. 07, 1977
Applicant:
Inventor:
Wayne A Levijoki, Clio, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
180108 ; 1231 / ; 1801 / ;
Abstract
A vehicle road speed control system has a differential pressure actuated servomotor as a part of a power unit including an integral solenoid controlled valve assembly. The servomotor and valve assembly includes a servomotor output position feedback path. The solenoid valve assembly is of the repulsion armature type with the load spring coupled to the servomotor power wall to introduce position feedback. Two modifications of the valve orifice control arrangement are disclosed.