DEVICE FOR FIRE EXTINGUISHING Russian patent published in 2013 - IPC F17C13/02 G01F23/28 A62C13/62 

FIELD: fire safety.

SUBSTANCE: device for fire extinguishing comprising a cylinder with fire extinguishing agent and a device to determine its weight in the cylinder, comprises a sensor of weight and an electronic unit. The sensor of weight is made in the form of a segment of coaxial long line formed by a complex of a siphon tube and a metal pipe located outside coaxially with respect to it, between the lower ends of which reactive resistance is connected. Reactive resistance can be made equal to zero when short-circuiting of the lower ends of the siphon tube and the metal pipe or inductive.

EFFECT: increased accuracy of determining the weight of fire extinguishing agent.

3 cl, 2 dwg