Pressurization system for fire extinguishers
First Claim
Patent Images
1. A method for remanufacturing a discharged vaporizing-liquid fire extinguisher comprising:
- 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.
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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
21 Claims
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1. 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 (2, 3, 4, 5, 6, 7, 8)
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9. 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 (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification