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:
Dec. 08, 1987
Filed:
Dec. 11, 1985
Applicant:
Inventors:
Fariborz Kayyod, Anderson, IN (US);
Donald E Hoffman, W. Seneca, NY (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01B / ; F16J / ;
U.S. Cl.
CPC ...
92 94 ; 92 9 / ; 92131 ; 267166 ; 403166 ;
Abstract
A vacuum operated actuator is provided with a centering mechanism that operates with a single spring to normally locate the output in a mid-position and also return same from both an extended position and a retracted position. The centering mechanism also includes a connector that may be changed to adjust the output for connection with the device to be actuated without changing the centering and return operation.