Pressurization system for fire extinguishers
2 Assignments
0 Petitions
Accused Products
Abstract
A fire extinguisher includes a gas generator for pressurizing a suppressant. The generator includes an ignition cord within a flexible tube extending within an interior of an extinguisher bottle. Advantageously, there is additional generant between the tube and the ignition cord. The extinguisher may be manufactured as a retrofit of an existing hand-held supercharged extinguisher.
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Citations
34 Claims
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1-13. -13 (Canceled)
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14. A method for remanufacturing a discharged vaporizing-liquid fire extinguisher comprising:
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removing a first discharge assembly from an extinguisher bottle;
removing a dip tube from the bottle;
cleaning the bottle;
filling the bottle with a liquid suppressant;
inserting a gas generator into the bottle; and
either reinstalling the first discharge assembly or installing a second discharge assembly. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method of manufacturing a fire extinguisher fire extinguisher comprising:
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providing a bottle having an interior and at least an outlet;
introducing a fire suppressant into the bottle when the extinguisher is in a pre-discharge condition; and
securing and extending though a gas generant and discharge assembly to the bottle outlet;
wherein the gas generant and discharge assembly comprises;
a source of gas for pressurizing the suppressant at least when the bottle is in a discharging condition comprising;
an ignition cord having a sheath and a pyrotechnic charge contained within the sheath and extending from a proximal end to a distal end;
a flexible tube surrounding the sheath at least along a major portion of a length thereof and extending from a proximal end to a distal end;
a gas generant charge contained between the tube and sheath; and
means for igniting the ignition cord; and
an outlet, through which the suppressant is discharged when the extinguisher is in the discharging condition. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification