POWDER FIRE EXTINGUISHER Russian patent published in 1995 - IPC

FIELD: fire fighting facilities. SUBSTANCE: fire extinguisher has vessel filled with fire extinguishing powder, siphon tube vertically installed in vessel, shutoff-and-starting head mounted on upper end face of vessel and engaged with siphon tube, gas under pressure and valve for pulse release of gas pressure. Valve is installed on siphon tube in its upper part which adjoins shutoff-and-starting head. Gas is arranged in vessel together with fire extinguishing powder. Valve is formed by upper end section of siphon tube provided with stepped flare with channels on flared part. Circular projection for shutoff member is located under end face of flared part with clearance relative to this part. Shutoff member is made in form of ring plate. EFFECT: enlarged operating capabilities. 3 cl, 4 dwg