A - Human Necessities – 62 – C
Patent
A - Human Necessities
62
C
A62C 31/03 (2006.01) A62C 31/02 (2006.01) A62C 31/05 (2006.01) B05B 1/12 (2006.01) B05B 1/16 (2006.01) B05B 1/30 (2006.01) B05B 1/34 (2006.01)
Patent
CA 2144634
The object of the invention is to provide a new method for fighting fires, which method requires a small amount of extin- guishing liquid for extinguishing a fire and for preventing reignition. When fighting fires in apartments and the like the fire is at first suppressed by spraying fog-like liquid, and thereafter a concentrated liquid spray is directed into the smouldering fire seat. For this purpose it is suggested to use a pistol-like extinguisher (1) with a hydraulic accumulator (5) as a drive unit and provided with a spray head (3) which at first, when the pressure in the hydraulic accumulator is high, produces a fog-like liquid spray and later, when the pressure in the hydraulic accumulator is reduced, produces a concentrated liquid spray. When fighting fires which develop intensive heat the fire is first suppressed by spraying a water jet from a relatively long distance, and thereafter extin- guished by spraying a liquid fog at close range. For this purpose it is suggested to arrange, in parallel with a fog-producing spray head, a separate nozzle for producing a forceful, concentrated water jet. To shift from spraying liquid fog to spraying water jet, and vice versa, a conventional valve can be used.
Kirby Eades Gale Baker
Sundholm Goran
LandOfFree
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