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:
Jan. 10, 1984
Filed:
May. 13, 1982
James McReynolds, Olathe, KS (US);
Other;
Abstract
A check valve is positioned in the pneumatic power system of a vehicle in which air is supplied to a pneumatic compressor from an induction manifold of an engine. The compressor has an oil sump, a start and stop clutch, an air inlet, and an air outlet. A check valve is emplaced in the air inlet conduit leading from the engine manifold to the compressor to provide a one-way flow of air into the compressor when the compressor is running and to block the conduit in response to a vacuum created therein and prevent the vacuum from reaching the compressor when the compressor is not running. The valve prevents oil from the compressor sump from being drawn into the pneumatic system and fouling air actuated devices.