APPARATUS FOR EMERGENCY VENTILATION OF DECOMPRESSION CHAMBER Russian patent published in 2002 - IPC

FIELD: purification of gaseous medium in emergency sections of submarine or decompression chamber. SUBSTANCE: apparatus has carbon dioxide absorbing cartridge and air supercharging device for supercharging air through cartridge. Air supercharger has double-arm rocker equipped with feet platforms and positioned for rocking around central immovable pivot. Bellows tie-rods are pivotally attached to each arm of rocker. Bellows are closed at both sides with covers. Non- return suction valves are arranged in lower covers and delivery valves are positioned in upper cover. Delivery valves are connected through flexible hoses with cartridge. Apparatus does not need outer power sources for operation of supercharger. EFFECT: simplified construction and increased efficiency. 1 dwg