E - Fixed Constructions – 04 – H
Patent
E - Fixed Constructions
04
H
E04H 9/12 (2006.01) E21D 13/00 (2006.01)
Patent
CA 2165104
An inflatable portable refuge structure includes at least one refuge chamber having a floor, ceiling and a peripheral sidewall and an inner resealable entrance in the peripheral sidewall of the refuge chamber. An airlock chamber having a floor, ceiling and peripheral sidewall is connected to the refuge chamber adjacent the inner resealable entrance such that exiting from the refuge chamber through the inner resealable opening proceeds into the airlock chamber. The airlock chamber further includes an outer resealable entrance in the peripheral sidewall thereof. The refuge chamber and airlock chamber each further include at least one one-way pressure valve, the pressure valves operative to release air from within the chambers in response to increased air pressure within the chambers. An external pressurized air supply source spaced from the refuge structure and connected thereto by an air supply hose supplies uncontaminated air to the refuge chamber thereby inflating the refuge structure. The air supply source continuously supplies pressurized air to the refuge structure such that fresh air enters the refuge chamber and airlock chamber thereby forcing older air out of the chambers through the one-way pressure valves.
Cette invention concerne un abri gonflable qui comporte au moins un compartiment refuge ayant un plancher, un plafond, une cloison périphérique et une entrée intérieure refermable ménagée dans ladite cloison périphérique. Un sas délimité par un plancher, un plafond et une cloison périphérique est raccordé au compartiment refuge de façon qu'on ne puisse sortir de l'abri que par le sas. Le sas comprend une entrée refermable donnant sur l'extérieur. Le compartiment refuge et le sas comprennent chacun par ailleurs au moins un détendeur monovoie destiné à évacuer toute surpression vers l'extérieur. Une source extérieure d'air comprimé se trouvant à distance de l'abri alimente celui-ci en air pur de gonflage acheminé par un flexible d'alimentation. Cette source alimente le sas et le compartiment refuge en air comprimé qui repousse à l'extérieur l'air vicié qui s'y est accumulé.
Baldwin Gary L.
Ridout & Maybee Llp
LandOfFree
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