Fluid sprinkling – spraying – and diffusing – Including supply holder for material – Moving solid surface engages material to be sprayed
Patent
1979-12-26
1982-08-24
Reeves, Robert B.
Fluid sprinkling, spraying, and diffusing
Including supply holder for material
Moving solid surface engages material to be sprayed
222182, 222207, 222340, B05B 9043
Patent
active
043457185
ABSTRACT:
Sprayer for fluid product in which a hand-actuated trigger forces a hollow piston mounted to move in vertical reciprocating fashion in a stationary tubular accumulator, against the compression of a spring. The product is forced upward and out through a swirl chamber adjacent the spray nozzle. Additional product is siphoned up into the accumulator by the partial vacuum created by the return of the piston to its rest position. Alternative embodiments, including both a vertically and horizontally directed sprayer, feature an annular flexible flange seating against an annular skirt below a swirl chamber, which keeps air out of the product chamber and deflects inwardly to release product under pressure. Additionally, a horizontally-directed spray-head may be attached to the vertical trigger sprayer for the purpose of converting the latter to a horizontal sprayer. Further embodiments comprise modification of the annular flexible flange including separate flange-type components which may be force-fitted into the accumulator top, and are constructed to tangentially seal against the annular skirt and deflect to release product. A dome and stopper structure may be used to replace the annular flexible flange, which acts as a diaphragm flexing under pressure to release product. Due to the flexible flange which deflects to allow the product to enter the swirl chamber, the sprayer may be used in an inverted position, provided a centrally-disposed siphon tube is removed.
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Forman Michael J.
Pugh Martha G.
Reeves Robert B.
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