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. 10, 1984
Filed:
Sep. 29, 1982
Applicant:
Inventor:
David L Stevenson, Corunna, MI (US);
Assignee:
Schmelzer Corporation, Flint, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
137114 ; 123409 ; 137115 ; 137D / ;
Abstract
A vacuum pressure regulator responsive to the pressure established at a variable source of pressure such as the manifold of an engine to move a valve element in proportion to such pressure to admit air at atmospheric pressure to mix with air at vacuum pressure thereby momentarily reducing the level of vacuum pressure made available for the operation of various vacuum operated devices.