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:
Jun. 25, 1985
Filed:
Jun. 09, 1983
John S Thistleton, Lincoln, GB;
Clayton Dewandre Co., Ltd., Lincoln, GB;
Abstract
A reciprocating, preferably a piston-type, exhauster adapted for mounting on an engine crankcase and having, on opposite sides of the piston, a high clearance volume inlet chamber and a low clearance volume exhaust chamber. The piston is operated by an engine driven cam acting on the piston rod which passes through the exhaust chamber and moves against a return spring in the inlet chamber. As the piston moves in the cylinder air is drawn from the inlet chamber through a non-return valve in the piston to the exhaust chamber and then is discharged directly into the engine crankcase.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile