Regenerable cryosorption pump with movable physical barrier and

Details Regenerable cryosorption pump with movable physical barrier and Regenerable cryosorption pump with movable physical barrier and

1988-06-02

1990-03-13

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

55269, 62100, 62268, 417901, B01D 800

Patent

active

049074130

ABSTRACT:
A regenerable cryosorption pump with a movable physical barrier in which the barrier includes a cylindrical body closed at one end and having a circumferential baffle around the open end. The baffle engages a flange on the hydrogen isotope condensing and pumping surface to require all gases entering the pump during normal operation to pass through the hydrogen isotope condensing and pumping surface, thus avoiding bypass of that surface. The barrier is advanced by a bellows system to isolate the hydrogen isotope condensing and pumping surface from the sorbent surface during regeneration and thus ensuring separation of hydrogen isotopes such as tritium from helium which is sorbed onto the sorbent surface.

REFERENCES:
patent: 2985356 (1961-05-01), Beecher
patent: 3019809 (1962-02-01), Ipsen et al.
patent: 4072025 (1968-02-01), Thibault
patent: 4198829 (1980-04-01), Carle
patent: 4438632 (1984-03-01), Lessard et al.
patent: 4724677 (1988-02-01), Foster

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