Valved cryogenic dewar

Details Valved cryogenic dewar Valved cryogenic dewar

1982-07-16

1983-09-20

Capossela, Ronald C.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

137587, 251114, 220420, F25B 1900

Patent

active

044048190

ABSTRACT:
A cryogenic dewar includes openings at the top and bottom of the cryogenic fluid container. A valve is provided at the bottom of the container to control the flow of cryogenic fluid into and out of the container. The valve includes a valve body forming at least one passageway from the container to the opening at the container bottom and a valve seat therebetween. A valve closure is provided to engage and seal the valve seat. A rod, having the valve closure at its lower end, is supported by the body within the cryogenic fluid container and extends upwardly to adjacent the opening at the top of the container. A valve actuator for said rod is carried in an upper opening and is adapted to engage the rod at its upper end, to operate said valve closure, and to be removable from the upper opening.

REFERENCES:
patent: 2834377 (1958-05-01), Bragg
patent: 3025680 (1962-03-01), De Brosse et al.
patent: 3062506 (1962-11-01), Dicker
patent: 3611746 (1971-10-01), Marsing
patent: 4209163 (1980-06-01), Nordskog

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