Non-pyrotechnic isolation valve element

Details Non-pyrotechnic isolation valve element Non-pyrotechnic isolation valve element

2007-07-18

2009-12-22

Rivell, John (Department: 3753)

Fluid handling

Destructible or deformable element controlled

Destructible element

C137S071000, C251S066000

Reexamination Certificate

active

07635004

ABSTRACT:
A housing has a passageway containing a valve seat. A valve element seals against the valve seat to maintain the valve in the closed position. A release rod extends from the valve body and a shell surrounds the release rod, preventing its movement. The shell is formed in several sections, maintained together by a wire. The wire is connected to a frangible initiator which, upon failure, releases the wire from the shell, allowing these sections to move away from one another. When this occurs, the release rod and valve body are able to move, opening the valve, allowing fluid flow between the inlet and outlet of the valve.

REFERENCES:
patent: 2620815 (1952-12-01), Margraf et al.
patent: 3620237 (1971-11-01), Sindall et al.
patent: 3722596 (1973-03-01), Livingston
patent: 3759282 (1973-09-01), Kaldenback et al.
patent: 3924688 (1975-12-01), Cooper et al.
patent: 5471888 (1995-12-01), McCormick

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