Hand-operated sprayers

Details Hand-operated sprayers Hand-operated sprayers

1984-10-12

1987-01-13

Peters, Jr., Joseph F.

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

251340, 251344, 251900, 239569, 239590, B05B 130, B05B 114, F16K 3900

Patent

active

046358560

ABSTRACT:
A hand-operated sprayer has a spray head for attachment to a container for liquid. The spray head includes a manually-operable valve for controlling the discharge of liquid from an inlet in the head to a discharge nozzle. The sprayer includes a spring urging the valve into a closed position and a manually-operable member mounted on the head, which can be moved against the spring-loading to urge the valve into an open position. The valve comprises a spool having a passage providing communication between the inlet and the discharge nozzle, and the spray head valve spool-valve spool bore assembly has a radial inlet port located between a fixed, valve spool seating component, and an annular valve spool seal component which prevents external leakage. The positioning of the inlet port relative to such components is designed to prevent pressure from the sprayer container from accessing and, therefore, from acting on the spool head in a longitudinal direction when the sprayer is not in use thus permitting a smaller spring to be used to keep the sprayer closed. An annular seal of elastomeric material is also disposed in the bore surrounding the spool, and in frictional engagement with it.

REFERENCES:
patent: 254048 (1882-02-01), Robertshaw
patent: 889952 (1908-06-01), McGinley et al.
patent: 2030510 (1936-02-01), Griffiths
patent: 2939675 (1960-06-01), K.ang.rden

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