Clean room having partially different degree of cleanliness

Details Clean room having partially different degree of cleanliness Clean room having partially different degree of cleanliness

1986-07-14

1987-10-13

Hart, Charles

Gas separation

Combined or convertible

Involving ash tray

55472, 55500, 98 316, 98 346, 98 36, B01D 5000

Patent

active

046996400

ABSTRACT:
A clean room is adapted to provide a plurality of clean air zones with different degrees of cleanliness. Air is passed through high efficiency particulate air filters in the ceiling of the room and withdrawn through shutters in the floor of the room. The shutters are adjustable to maintain a pressure-balanced system. The room is divided by walls and partitions to define different zones which are filtered by different classes of filters depending on the degree of cleanliness required in each zone.

REFERENCES:
patent: 4009647 (1977-03-01), Howorth
patent: 4094232 (1978-06-01), Howorth
patent: 4549472 (1985-10-01), Endo et al.
patent: 4608066 (1986-08-01), Cadwell
patent: 4632020 (1986-12-01), Houwer

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