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:
Nov. 08, 1983
Filed:
Oct. 06, 1980
Applicant:
Inventor:
Clifford W Allen, Jr, Lexington, KY (US);
Assignee:
Lexair, Inc., Lexington, KY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417 53 ; 417252 ; 417309 ;
Abstract
A two-stage reciprocating compressor has its low pressure stage inlet connected to a source of gas generating a varying volume of gas. When the supply of gas generated is reduced to an extent that the pressure at the low pressure stage inlet decreases below a predetermined pressure, the compressor is unloaded at either the discharge outlet of its low pressure stage or the discharge output of its high pressure stage through opening a valve in a line connecting the discharge outlet of the low pressure or high pressure stage with the inlet of the low pressure stage.