Cryogenic trap and pump system

Details Cryogenic trap and pump system Cryogenic trap and pump system

1984-11-28

1985-09-17

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

55269, 62268, 62514R, B01D 800

Patent

active

045412499

ABSTRACT:
A cryogenic system adapted to trap or pump waste industrial gasses and characterized by a cryogenic assembly having a cryogenically cooled member sealed within an inner enclosure, a thermal switch assembly for injecting and removing gas from within the inner enclosure, and a flush assembly for removing the solid and liquid residues of the industrial gasses from the trap assembly. The inner enclosure may be covered with a sacrificial material such as copper to chemically react with the reactive gasses. The use of a thermal switch assembly permits rapid regeneration of the system because the cryogenically cooled member does not have to be shut down during the regeneration cycle.

REFERENCES:
patent: 3262279 (1966-07-01), Moore, Jr.
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patent: 3525229 (1970-08-01), Denhoy
patent: 3552485 (1971-01-01), Le Jannou
patent: 3719052 (1973-03-01), White
patent: 4278499 (1981-07-01), Abramson et al.
patent: 4354356 (1982-10-01), Milner
patent: 4361418 (1982-11-01), Tscheppe
patent: 4432208 (1984-02-01), Onuki et al.

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