Airlock system

Details Airlock system Airlock system

1994-08-19

1997-03-04

Joyce, Harold

Ventilation

Clean room

34242, 414146, 414217, F24F 900

Patent

active

056073534

ABSTRACT:
In an airlock system, through which drums containing radioactive material are transferred into a containment area, a passage has an intermediate region, of reduced cross section relative to the inlet and outlet ends of the passage. The passage has a convergent inlet region and a divergent outlet region leading, respectively, to and from the intermediate region. The passage functions in the manner of a venturi so that an airstream is caused to flow along the passage towards the containment so as to inhibit the escape of atmosphere therefrom. A roller conveyor transfers the items through the airlock system and a detector monitors the atmosphere in the passage.

REFERENCES:
patent: 3875927 (1975-04-01), Trexler
patent: 4707334 (1987-11-01), Gerhard
patent: 5326211 (1994-07-01), Critchley

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