Sprayer

Details Sprayer Sprayer

1982-01-21

1984-03-13

Love, John J.

Fire extinguishers

Portable vessels

Gas pressure

169 85, 239454, A62C 3102, B05B 132

Patent

active

044361602

ABSTRACT:
A sprayer spraying liquid or pulverulent substances, particularly fire-extinguishing or fire-inhibiting substances, comprises a tank adapted to hold the substance to be sprayed, a sprayhead, a rising pipe extending from said tank to said sprayhead, and a pressure vessel, which contains a gaseous fluid and communicates through a shutoff valve with the tank. In order to ensure that the sprayed substance will be uniformly spread over a large area, the sprayhead is composed of a base, which is coaxially connected to the rising pipe and flares preferably like a cup, and a coverlike top, which is adapted to be tightly seated on said base and is adapted to be lifted from said base as far as to a stop, which can be adjusted in height, said top is adapted to be raised against a bias which is due to gravity and/or spring means, and an annular gap is held open between the base and the raised top by the substance as it is expelled in response to an actuation, preferably a sensor-controlled automatic actuation, of the shutoff valve connected between the pressure vessel and the tank.

REFERENCES:
patent: 699801 (1902-05-01), Martin
patent: 1815494 (1931-07-01), Camp
patent: 2543996 (1951-03-01), Turner
patent: 2550100 (1951-04-01), Voss
patent: 2559634 (1951-07-01), Keefe, Jr. et al.
patent: 2764246 (1956-09-01), Emmrich et al.
patent: 2819764 (1958-01-01), Anthony, Jr.
patent: 3485365 (1969-12-01), Keller
patent: 3779318 (1973-12-01), Livingston
patent: 3783947 (1974-01-01), Dix et al.
patent: 3823779 (1974-07-01), Stamm et al.
patent: 4069873 (1978-01-01), McClure

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