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.

Date of Patent:
Jun. 02, 1981

Filed:

Aug. 30, 1978
Applicant:
Inventors:

L Kirk Walters, Rochester, MI (US);

Richard K Judd, Rochester, NY (US);

Terrance J Atkins, Rochester, NY (US);

Assignee:

General Motors Corporation, Detroit, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ; F02M / ; F16F / ;
U.S. Cl.
CPC ...
261 / ; 92 8 / ; 267139 ; 267153 ; 188 / ;
Abstract

In a vacuum motor for opening an internal combustion engine carburetor choke to a vacuum break position, a stop is engaged between the actuating diaphragm and a base member to establish the vacuum break position. The stop is formed of a malleable material which plastically deforms slightly upon engagement--and thus gradually changes the vacuum break position upon repeated engagement--to compensate for changes in engine operating characteristics over an extended period of engine operation.


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