Gas exhaust device

Details Gas exhaust device Gas exhaust device

F - Mech Eng,Light,Heat,Weapons

16

K

137/24

F16K 15/00 (2006.01)

Patent

CA 1073776

ABSTRACT OF THE DISCLOSURE A gas exhaust device for a tank having a raising and lowering liquid level which comprises an outlet cavity having an uppermost portion and position- ed from the tank. A first valve is in the cavity and adjacent the tank and has a closed condition and an opened condition. a one way check valve allows gas flow only from the cavity, the check valve being adjacent the uppermost portion of the cavity. A level sensor shifts the first valve to its closed position when the liquid level is in the cavity and above the first valve. The first valve is shifted to its opened condition when the level in the tank is at a given level below the first valve means.

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