Check valve with hanger

Details Check valve with hanger Check valve with hanger

2005-10-11

2005-10-11

Krishnamurthy, Ramesh (Department: 3753)

Fluid handling

Line condition change responsive valves

Direct response valves

C251S358000

Reexamination Certificate

active

06953059

ABSTRACT:
A large diameter check valve has an upstream inlet part mountable on a discharge end of a conduit, a downstream outlet part adapted to prevent backflow of fluid through the check valve, and a transition part located between the upstream inlet part and the downstream outlet part. A support is included in the check valve to prevent drooping of the check valve via a cantilever effect. A method for supporting a check valve is also disclosed.

REFERENCES:
patent: 171817 (1876-01-01), Kahk
patent: 187411 (1877-02-01), Painter
patent: 3595266 (1971-07-01), Brookman et al.
patent: RE27399 (1972-06-01), Urso
patent: 4607663 (1986-08-01), Raftis et al.
patent: 5931197 (1999-08-01), Raftis et al.
patent: 6367505 (2002-04-01), Raftis et al.
patent: 1077339 (2001-02-01), None
patent: 2647161 (1990-11-01), None

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