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:
Sep. 18, 1984
Filed:
Sep. 27, 1982
Applicant:
Inventor:
Herbert Unger, Springe, DE;
Assignee:
WABCO Fahrzeugbremsen GmbH, Hanover, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417311 ;
Abstract
This disclosure relates to a pressure control arrangement for an air compressor. The pressure control arrangement includes an auxiliary pressure chamber which is vented to the atmosphere by the auxiliary pressure chamber is connected to the compression chamber of the air compressor by a spring biased piston controlled valve which is normally closed. When the air pressure exceeds a predetermined value, the piston controlled valve is opened by the air pressure to vent the compression chamber to the atmosphere.