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US 5,575,341 AGranted
Mechanical foam fire fighting equipment and method
AssigneeCCA Inc.
InventorsKenneth C. Baker, Dwight Williams, Leslie P. Williams
Life of this patent
Estimating the term…
Abstract
Mechanical foam fire fighting equipment and method wherein an inert gas is delivered to a foaming chamber of a mechanical foam making assembly, the foaming chamber also receiving a liquid and foam concentrate, the inert gas in some embodiments being supplied by the exhaust of an engine.
Claims8
A fire fighting system comprising:
- a nozzle having a discharge orifice;
- means for discharging liquid from said orifice;
- a source of inert gas;
- means for communicating said inert gas from said source of inert gas to a foaming area at said discharge orifice;
- a source of foam concentrate;
- means for communicating said foam concentrate from said source of foam concentrate to said foaming area;
- and
- means for mixing said inert gas and said foam concentrate with said liquid in said foaming area at said discharge orifice to thereby form mechanical foam.
5 more elements
A method of fighting fire comprising:
- providing a nozzle having a discharge orifice;
- discharging liquid from said orifice;
- providing a source of inert gas;
- communicating said inert gas from said source of inert gas to a foaming area at said discharge orifice;
- providing a source of foam concentrate;
- communicating said foam concentrate from said source of foam concentrate to said foaming area;
- mixing said inert gas and said foam concentrate with said liquid in said foaming area at said discharge orifice to thereby form mechanical foam;
- and
- projecting said mechanical foam through the air to said fire.
6 more elements
Dependencies are inferred from the claim text.