Sprayer head

Details Sprayer head Sprayer head

1986-04-01

1987-06-30

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With cleaning means, drip collecting, waste disposal or soil...

Nozzle cleaner, flusher or drainer

13762548, 239119, 239443, 251172, 251900, B05B 1502

Patent

active

046764356

ABSTRACT:
A sprayer comprising a housing (10) having an internal aperture in which a spool (12) is mounted for translational movement is disclosed. The spool has a nozzle (32) mounted to it. A cavity (30), formed in the spool, is configured to provide a passageway for directing fluid from an inlet (20) in the housing to the nozzle when the sprayer is in a spraying position. The cavity also provides a fluid passageway from the fluid inlet to a fluid outlet (21), which is also formed in the housing. The latter fluid passageway permits a reverse fluid flow through the nozzle. The direction of the reverse fluid flow is opposite to spraying flow direction. Thus, the reverse fluid flow cleans the nozzle by removing matter that clogs the nozzle. A pneumatically actuated, double-acting piston and cylinder assembly is used to move the spool between the spraying position and the cleaning position.

REFERENCES:
patent: 1304384 (1919-05-01), Schlatter
patent: 2887736 (1959-05-01), Barrett
patent: 3146793 (1964-09-01), Boys et al.
patent: 3593920 (1971-07-01), Watson
patent: 3959024 (1976-05-01), Kirk et al.
patent: 3985300 (1976-10-01), Pinney
patent: 4116386 (1978-09-01), Calder
patent: 4365563 (1982-12-01), Wu
patent: 4423741 (1984-01-01), Levy

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