Spray apparatus

Details Spray apparatus Spray apparatus

1976-07-06

1978-03-14

Blunk, Evon C.

Fluid sprinkling, spraying, and diffusing

Processes

Including centrifugal force or spattering

118DIG16, 222406, 239220, 239222, 239329, 239373, B05B 1100

Patent

active

040787257

ABSTRACT:
A hand-operated liquid spray apparatus operates on the air-lift pump principle wherein the air-forcing member and the spray-forming member are one and the same. Such an apparatus requires no nozzles or valves and no permanent pressurization of the sprayed liquid. A plurality of deflectable vanes are movably disposed in an open-ended chamber which communicates with the interior of a liquid container via separate air and liquid passages. The vanes, when at rest, seal both passages from the open chamber end. Operator-initiated motion of the vanes toward the air passage forces air trapped in the chamber through the air passage and into the container, thereby forcing liquid up through the liquid passage to wet the vanes in the chamber. A lip at the open end of the chamber is arranged to deflect the wetted vanes as they move past the lip. After passing the lip the deflected vanes spring back to their undeflected positions and, in so doing, throw off a spray pattern of liquid droplets. The embodiments having rectilinear and rotational strokes.

REFERENCES:
patent: 51891 (1866-01-01), Campbell
patent: 506389 (1893-10-01), Claus
patent: 3648652 (1972-03-01), Katzman et al.
patent: 3667654 (1972-06-01), Holley

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