Spray valve with constant actuating force

Details Spray valve with constant actuating force Spray valve with constant actuating force

1989-09-15

1992-03-31

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Processes

Of discharge modification of flow varying

239436, 239443, 239468, 239525, 239583, 251172, 251340, B05B 118, B05B 134

Patent

active

051000555

ABSTRACT:
A spray valve is disclosed for controlling and directing the flow of a fluid. The spray valve includes an integral trigger/waterway, that is movable between an open and a closed position, and a non-movable fluid seal that plugs the end of the waterway to prevent the flow of fluid. A spring normally biases the trigger to the closed position. The force needed to activate the trigger is substantially independent of the water pressure flow and is defined almost exclusively by the force needed to compress the spring. The spray valve assembly is held together by an integral snap-fit construction, eliminating the need for fasteners such as screws, pins, or the like. The spray valve includes a spray cap that provides a variety of spray patterns. At least one of the bores in the spray cap which is used to produce a coarse spray is also used to produce a mist, so that a conventional bore having a relatively small diameter for producing a mist is not required and the likelihood of clogging is reduced.

REFERENCES:
patent: 650295 (1900-05-01), Boulard
patent: 2126856 (1938-08-01), Yancey
patent: 2369356 (1945-02-01), Koehn
patent: 2457993 (1949-01-01), Fletcher et al.
patent: 3588040 (1971-06-01), Ward
patent: 4187986 (1980-02-01), Petrovic
patent: 4398669 (1983-08-01), Fienhold
patent: 4589439 (1986-05-01), Steingass
patent: 4650120 (1987-03-01), Kress
patent: 4754928 (1988-07-01), Rogers et al.

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