Protective shelter flow control apparatus

Details Protective shelter flow control apparatus Protective shelter flow control apparatus

1984-04-30

1985-12-17

Joyce, Harold

55316, 55337, 98 211, 98116, F24F 316

Patent

active

045586365

ABSTRACT:
A flow control apparatus for a protective shelter including valve means to allow preselected maximum and minimum amounts of air flow into the shelter depending upon ambient contaminant concentrations.

REFERENCES:
patent: 3077716 (1963-02-01), Wilson
patent: 4279630 (1981-07-01), Hakamura et al.
patent: 4423669 (1984-01-01), Bullock et al.

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