Umbrella valve and assembly

Details Umbrella valve and assembly Umbrella valve and assembly

2007-12-04

2007-12-04

Krishnamurthy, Ramesh (Department: 3753)

Fluid handling

Line condition change responsive valves

Direct response valves

C137S512150, C137S515000, C137S515500, C137S859000

Reexamination Certificate

active

11021476

ABSTRACT:
An umbrella valve includes an umbrella-valve body having a stem, a flexible umbrella, and a flange. The umbrella and the flange are each attached to, and extend radially outward from, the stem. The flange has at least one fluid passage. The umbrella valve can be placed in a valve housing having a sealing-surface portion. The umbrella, when the umbrella-valve body is placed in the valve housing, is pushed away from the sealing-surface portion under a forward fluid flow and is pushed against the sealing-surface portion under a reverse fluid flow. An umbrella-valve assembly includes the umbrella valve and the valve housing.

REFERENCES:
patent: 2329960 (1943-09-01), Verheul
patent: 2912999 (1959-11-01), Kersh
patent: 2913000 (1959-11-01), Roberts
patent: 3903922 (1975-09-01), Buckman
patent: 4593720 (1986-06-01), Bergandy
patent: 5598872 (1997-02-01), Kasugai et al.
patent: 6357468 (2002-03-01), Roussel
patent: 6412514 (2002-07-01), Raftis
patent: 6470904 (2002-10-01), Tai et al.
patent: 7108361 (2006-09-01), Kitabatake et al.
patent: 2002/0002350 (2002-01-01), Larrain et al.
patent: 1479521 (2004-11-01), None

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