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:
Jul. 14, 1981
Filed:
Sep. 20, 1979
Applicant:
Inventor:
William W Cunningham, Exeter, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
1375121 ; 13751613 ; 13751615 ; 251361 ;
Abstract
A plate check valve having a housing for mounting across a fluid passsageway to prevent reverse flow therein; a cage detachably mounted on the housing; a plurality of annular, planar, coaxial, radially spaced seat plates releasably clamped between the housing and the cage; and a plurality of axially movable, annular, planar valve plates individually related to and overlapping the spaces between the seat plates, the valve plates moving into engagement with the seat plates to prevent reverse flow through the valve and from the seat plates for normal flow through the valve.