Double acting mechanical pump liquid atomizer

Details Double acting mechanical pump liquid atomizer Double acting mechanical pump liquid atomizer

1986-04-10

1987-03-03

Peters, Jr., Joseph F.

Fluid sprinkling, spraying, and diffusing

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

Nozzle cleaner, flusher or drainer

239333, 222375, 222340, 222383, B05B 1502, B05B 9043

Patent

active

046469699

ABSTRACT:
Double-acting mechanical liquid spraying device having a housing which is adapted to be mounted upon and sealed to the neck of a liquid container, and which has a liquid-containing compartment therein. In the housing, aligned with the liquid-containing compartment, there is an operation cylinder which has an annular valve seat disposed transversely to and intermediate the length of such cylinder. Disposed within the liquid-containing compartment is a liquid pumping plunger of the cuff type which cooperates with the valve seat to close the opening through such seat when the plunger is in its forward terminal position, and which is driven to reciprocate within the liquid-containing compartment in forward and reverse liquid dispensing strokes. In each of such strokes the plunger forwards liquid from the liquid-containing compartment to a spray nozzle through a liquid-conducting passage. Interposed in the liquid-conducting passage between the plunger and the spray nozzle are a relief valve and a relief passage which bleed liquid back to the liquid container and allow atmospheric air to be drawn in through the spray nozzle at the end of the reverse stroke of the plunger, thereby to clear the spray nozzle of liquid at the end of each pumping cycle consisting of a forward and a reverse stroke. As a consequence, fast-drying liquids can be sprayed with the device of the invention.

REFERENCES:
patent: 1045964 (1912-12-01), Friese
patent: 1947088 (1934-02-01), Johnson et al.
patent: 2172136 (1939-09-01), Davis
patent: 2686562 (1954-08-01), MacCracken et al.
patent: 2753578 (1956-07-01), Lebet
patent: 2822958 (1958-02-01), Merkley
patent: 4071172 (1978-01-01), Balogh
patent: 4146155 (1979-03-01), Kutik et al.
patent: 4305530 (1981-12-01), Nowaza

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