Spray gun with low pressure air

Details Spray gun with low pressure air Spray gun with low pressure air

1975-01-28

1976-01-06

King, Lloyd L.

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

At or beyond outlet

F23D 1116, F23D 1340, F23D 1500

Patent

active

039306151

ABSTRACT:
A spray gun with a retractable stem for opening a spray jet to the outflow of a liquid to be sprayed, also opens the compressed air inlet upon rearward movement of the stem. The compressed air flows about the stem and into a venturi throat through which the stem passes. The venturi educts atmospheric air so that the air that atomizes the liquid is at greatly reduced pressure. Rearward movement of the stem is also effected by compressed air that actuates a piston to move the stem rearwardly.

REFERENCES:
patent: 2513523 (1950-07-01), Schafer
patent: 3796376 (1974-03-01), Farnsteiner

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