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. 11, 2001
Filed:
Jan. 26, 2000
Applicant:
Inventors:
Walter E. Goettel, Monogahela, PA (US);
Ronald J. Shaffer, Pittsburgh, PA (US);
Assignee:
Westinghouse Air Brake Company, Wilmerding, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 2/300 ; F04B 4/900 ; F01D 5/08 ;
U.S. Cl.
CPC ...
F04B 2/300 ; F04B 4/900 ; F01D 5/08 ;
Abstract
Retrofit apparatus is provided for rapidly exhausting air pressure from one or more intercoolers connected in fluid communication between two low pressure heads of an air compressor and a high pressure head of the compressor. The retrofit apparatus comprises an unloader valve, a center header for commonly connecting the intercoolers to the high pressure head, and means for connecting the unloader valve to the center header to effect rapid unloading of the header and the intercoolers connected thereto of pressurized air when the valve receives a compressor unload signal.