Fire extinguisher and fire extinguishing composition
OwnerShin H. Kunginventor
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Abstract
An improved fire extinguishing composition is described using two differing fire extinguishing fluids with or without the use of a nonfluorocarbon propellant. The two fire extinguishing fluids are a low vapor pressure halogenated alkane such as bromochlorodifluoromethane and a higher vapor pressure halogenated alkane such as bromotrichloromethane. The fire extinguishing composition is self propelled. Minor proportions of a propellant such as propane or carbon dioxide may be combined with the extinguishing composition for dispensing from an aerosol-type container.
Claims8
An improved extinguishing compound for use in low pressure, aerosol fire extinguishers consisting of between about 10 and 90% of a low vapor pressure halogenated alkane selected from the group consisting of trichlorofluoromethane, dibromodifluoromethane, bormochlorodifluoromethane and 1,2-dibromotetrafluoroethane and between about 4 and 96% of a high vapor pressure halogenated alkane selected from the group consisting of, bromotrifluoromethane, and chloropentafluoroethane, all of said percentages being by weight of the extinguishing compound.
Dependencies are inferred from the claim text.