Fire extinguisher for closed spaces
First Claim
1. A fire extinguisher for closed spaces, said fire extinguisher comprising a pressure container having first and second fluid storage chambers therein, said first and second fluid storage chambers separated from each other and partially defined by a displaceable wall, an extinguishant liquid stored in said first chamber, said first chamber provided with a release valve, a pressurized driving gas stored in said second chamber, the extinguishant liquid stored in said first chamber discharged through said release valve by displacement of said displaceable wall into the first chamber at a high pressure in response to a driving force exerted on said displaceable wall by said pressurized driving gas stored in said second chamber upon actuation of said release valve, the fire extinguisher further comprising at least one nozzle connected with the release valve, the extinguishant liquid supplied to the nozzle from the release valve at a high pressure atomized by said nozzle, a liquid fog created by said atomized extinguishant liquid filling the closed space, wherein the displaceable wall is constituted by a piston displaceably positioned in the pressure container between the first chamber containing the extinguishant liquid and the second chamber containing the pressurized driving gas, the piston being adapted to discharge the whole amount of extinguishant liquid from the fire extinguisher.
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Accused Products
Abstract
A fire extinguisher for closed spaces comprising a pressure container having at least two chambers separated from each other by means of a displaceable wall, one of the chambers containing an extinguishant liquid and being provided with a release valve and the other chamber containing a pressurized driving gas for discharging the extinguishant liquid from said one chamber through said release valve by displacing the displaceable wall into the first chamber at a high pressure when the release valve is actuated, the fire extinguisher further comprising at least one nozzle connected with the release valve for atomizing the extinguishant liquid supplied to the nozzle from the release valve at a high pressure in order to create a liquid fog filling the closed space, characterized in that the displaceable wall is constituted by a piston displaceably positioned in the pressure container between the chamber containing the extinguishant liquid and the chamber containing the pressurized driving gas, the piston being adapted to discharge the whole amount of extinguishant liquid independent of the fire extinguisher.
46 Citations
20 Claims
- 1. A fire extinguisher for closed spaces, said fire extinguisher comprising a pressure container having first and second fluid storage chambers therein, said first and second fluid storage chambers separated from each other and partially defined by a displaceable wall, an extinguishant liquid stored in said first chamber, said first chamber provided with a release valve, a pressurized driving gas stored in said second chamber, the extinguishant liquid stored in said first chamber discharged through said release valve by displacement of said displaceable wall into the first chamber at a high pressure in response to a driving force exerted on said displaceable wall by said pressurized driving gas stored in said second chamber upon actuation of said release valve, the fire extinguisher further comprising at least one nozzle connected with the release valve, the extinguishant liquid supplied to the nozzle from the release valve at a high pressure atomized by said nozzle, a liquid fog created by said atomized extinguishant liquid filling the closed space, wherein the displaceable wall is constituted by a piston displaceably positioned in the pressure container between the first chamber containing the extinguishant liquid and the second chamber containing the pressurized driving gas, the piston being adapted to discharge the whole amount of extinguishant liquid from the fire extinguisher.
- 9. A fire extinguisher for closed spaces comprising a pressure container having at least two chambers separated from each other by means of a displaceable wall, one of the first chambers containing an extinguishant liquid and being provided with a release valve and the second chamber containing a pressurized driving gas for discharging the extinguishant liquid from said first chamber through said release valve by displacing the displaceable wall into the first chamber at a high pressure when the release valve is actuated, the fire extinguisher further comprising at least one nozzle connected with the release valve for atomizing the extinguishant liquid supplied to the nozzle from the release valve at a high pressure in order to create a liquid fog filling the closed space, said displaceable wall constituted by a piston displaceably positioned in the pressure container between the first chamber containing the extinguishant liquid and the second chamber containing the pressurized driving gas, the piston being adapted to discharge the whole amount of extinguishant liquid independent of the fire extinguisher, said pressure container comprising two chambers for extinguishant liquid comprising one release valve each and a chamber for pressurized driving gas positioned between said chambers and separated therefrom by means of displaceable walls.
Specification