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:
Aug. 11, 1987
Filed:
Oct. 14, 1986
Applicant:
Inventors:
Rudolph Stegmann, Gettysburg, PA (US);
Zoltan A Mandy, Waynesboro, PA (US);
Assignee:
Frick Company, Waynesboro, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62217 ; 1376142 ; 13761421 ; 62510 ;
Abstract
A flow control valve in a unitary casing has a seat for a manual stem valve on one side of the valve opening and a seat for a check valve on the other side, the check valve being lightly urged toward closing position against differential pressure in the flow stream and being receptive to external pressure control.