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:
Apr. 07, 1987
Filed:
Dec. 16, 1985
Applicant:
Inventor:
Donald K Chalaire, Palm Beach Gardens, FL (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137528 ; 1375157 ; 13753317 ;
Abstract
A check valve (22) is provided with a tapered plug (32), freely longitudinally movable with respect to a valve seat surface (34) disposed about the opening of the inlet passage (24). A plurality of cutouts (36) are disposed about the outer edge of the plug (32) for passing the forward flowing fluid. An exit nozzle (38) directs reverse flowing fluid against the rear of the plug (32), assisting valve closure.