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. 17, 1985
Filed:
Jul. 02, 1984
Applicant:
Inventors:
Frank J Viola, Uniondale, NY (US);
Erwin L Schaub, Manhasset, NY (US);
Bernard C Sharp, White Plains, NY (US);
Raymond J Evans, Stratford, CT (US);
Assignee:
Parker-Hannifin Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417295 ;
Abstract
An electric motor driven portable air compressor consists of a reciprocating piston and cylinder arrangement with an intake throttling valve operative to unload the compressor above a predetermined pressure level. The throttling valve is a spring loaded plunger responsive to compressor output to close one of two inlet openings to reduce the charge of air in the cylinder. A stainless steel intake leaf spring is disposed between the cylinder and a two part die cast housing and is responsive to cylinder suction for control of the compressor.