Positive environmental enclosure

Details Positive environmental enclosure Positive environmental enclosure

1980-03-28

1981-12-08

Lacey, David L.

Surgery

Truss

Perineal

12820129, 12820219, 55215, 55233, 55279, 55287, 55314, 55344, 55350, 55385A, 98 33A, 312 1, 312 3, 2DIG7, 422104, 422120, A61M 1602, A61L 218, E04H 112, B01D 4642

Patent

active

043042244

ABSTRACT:
An environmental enclosure or clean room composed of a structural frame which supports a flexible transparent plastic film which defines a sealed chamber or room. Air is introduced into the chamber through a two-stage filter system and is exhausted through a filter duct. Located adjacent the chamber is a small entry compartment, and the entry compartment has sealed doorways leading to the exterior and to the interior of the sealed chamber respectively. To inspect objects in the sealed chamber, the operator enters the entry compartment and puts on a hermetically sealed suit that is normally stored in the compartment. With the operator sealed within the suit, the entry compartment is sterilized and the operator can then enter the main chamber. The suit has a provision for receiving air from the outside and for discharging air from the suit to the exterior of the chamber. The operator can move freely within the chamber without destroying the germ-free atmosphere in the chamber, and without the operator being contaminated by toxic or hazardous materials contained within the chamber.

REFERENCES:
patent: 1610288 (1926-12-01), Jones et al.
patent: 2516419 (1950-07-01), Reyniers
patent: 3051163 (1962-08-01), Trexler
patent: 3239305 (1966-03-01), Potapenko
patent: 3263400 (1966-08-01), Hoke et al.
patent: 3412730 (1968-11-01), MacLeod
patent: 3439966 (1969-04-01), Perkins et al.
patent: 3501213 (1970-03-01), Trexler
patent: 3525197 (1970-08-01), Sheehan
patent: 3601031 (1971-08-01), Abel et al.
patent: 3709210 (1973-01-01), Matthews
patent: 4202676 (1980-05-01), Pelosf, Jr. et al.

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