Method and apparatus for filling cryogenic liquid cylinders

Details Method and apparatus for filling cryogenic liquid cylinders Method and apparatus for filling cryogenic liquid cylinders

1982-07-26

1984-10-09

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

141 5, F17C 702

Patent

active

044753489

ABSTRACT:
A method and apparatus are disclosed for filling a portable cryogenic liquid cylinder from a large stand tank. The invention employs a regulator valve to perform an automatic throttling function whereby the pressure in the liquid cylinder is maintained at a value slightly lower than the upstream pressure in the stand tank. This significantly reduces filling losses due to flashing.

REFERENCES:
patent: 2487863 (1949-11-01), Garretson
patent: 2916061 (1959-12-01), Hahn et al.
patent: 2993343 (1961-07-01), Benz
patent: 3272238 (1966-09-01), Groppe
patent: 3282305 (1966-11-01), Antolak
patent: 3845636 (1974-11-01), Van Mal et al.

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