Fluid sprinkling – spraying – and diffusing – Combining of separately supplied fluids – Liquid flow induces atmospheric air
Patent
1988-09-09
1990-07-31
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Combining of separately supplied fluids
Liquid flow induces atmospheric air
239439, 239507, 169 89, A62C 3300, B05B 126
Patent
active
049444603
ABSTRACT:
A multifunction nozzle including a peripheral jet nozzle having a first end adapted to be connected to a liquid supply and a second end from which the jet is ejected. The liquid may be plain water or a mixture of water and a foam concentrate. The peripheral jet nozzle is adjustable between straight stream and fog positions. The multifunction nozzle further comprises a sleeve which is attached to and surrounds the peripheral jet nozzle, the sleeve being movable relative to the jet nozzle in the direction of the nozzle axis and the flow of the liquid. The sleeve is movable between a forwardly extended or foam position and a rearwardly retracted or inoperative position. When the sleeve is in the retracted position it is out of the path of the liquid jet and the nozzle may be used in either the straight stream or fog modes. When the sleeve is moved forwardly to the extended position and the peripheral jet nozzle is placed in the fog mode, the diverging liquid jet strikes the inner surface of the sleeve. An agitator is attached to the inner surface of the sleeve and causes the jet to break into fine particles. In the instance where the jet includes a mixture of water and foam concentrate, air is introduced into the mixture within the sleeve, and a dense foam is ejected. The nozzle may also be used in the straight stream mode when the sleeve is in the extended position.
REFERENCES:
patent: 943780 (1909-12-01), Hughes
patent: 2552445 (1961-05-01), Nielsen
patent: 3363842 (1968-01-01), Burns
patent: 4176794 (1979-12-01), Allenbaugh
patent: 4497442 (1985-02-01), Williams
patent: 4640461 (1987-02-01), Williams
patent: 4646973 (1987-03-01), Focaracci
patent: 4653693 (1987-03-01), Steingass
patent: 4669665 (1987-06-01), Shay
A publication of National Foam titled "Portable Aer-O-Foam Nozzles" (Revised) (11-86).
A publication of Akron Brass, catalog No. 106, p. 39, on Foam Nozzles & Foam Generator (no date).
A publication of Elkhart titled "Fire Fighting Equipment", catalog-T, pp. 20 and 21 on Foam Nozzles (no date).
A publication of Halprin Supply Company Describing Foam Equipment by Macron Fire Ltd. (No date).
A publication titled "Angus Foammasters" (no date).
A publication of National Foam titled "Foam Liquids and Equipment for Municipal and Volunteer Fire Departments", pp, 1-16 (copyright 1980).
A publication of Chemonics Industries, Inc. titled "Use Guidelines for Fire-Trol Firefoam" 103 (Aug. 1987).
Kashnikow Andres
Task Force Tips Inc.
Weldon Kevin P.
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