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:
Oct. 14, 1980
Filed:
Nov. 09, 1979
Applicant:
Inventors:
F Michael Laucks, Chambersburg, PA (US);
Rudolph Stegmann, Wellsville, PA (US);
Assignee:
Frick Company, Waynesboro, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B / ; F16K / ;
U.S. Cl.
CPC ...
62217 ; 251 14 ; 251 63 ;
Abstract
A single casing valve is especially adapted for the inlet of a rotary screw type compressor, the valve having provision for both a manual and an automatic shut-off, the latter responsive to discharge pressure for closing the inlet, and having a strainer in the suction line which is downstream from the valve seat in order that the strainer may be changed with the compressor isolated from the inlet source.