Decontamination system

Details Decontamination system Decontamination system

1987-09-24

1988-04-05

Terapane, John F.

Gas separation

Combined or convertible

Involving ash tray

55 97, 55467, 98 331, 160332, 160DIG8, 312 1, 312 3, B01D 5000

Patent

active

H00004600

ABSTRACT:
A decontamination system in combination with a work space maintained at subambient pressure. An inner vestibule is connected to the work space via a first portal, which can be selectively opened and closed by a first door. A middle vestibule, in which at least one shower bath is installed, is connected to the inner vestibule only via a second portal, which can be selectively closed by a second door or opened. An outer vestibule is connected to the middle vestibule only via a third portal, which can be selectively opened and closed by a third door, and to an ambient space only via a fourth portal, which can be selectively opened or closed by a fourth door. Each door is a rigid door. Except for the third door, which seals the third portal when the third portal is closed by the third door, each door has fixed louvers allowing small quantities of air to infiltrate. The third door is interconnected with the second door in such a manner, as by means of a chain of fixed length, that the second and third portals cannot be simultaneously opened. Personnel can leave their tools and garments in the inner vestibule, use the shower bath in the middle vestibule, and put on clean garments in the outer vestibule, from which they can pass to the ambient space, with minimal risk of escape of fugitive particles via the decontamination system.

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