Fluid sprinkling – spraying – and diffusing – Processes – Of discharge modification of flow varying
Patent
1976-06-23
1979-01-02
Saifer, Robert W.
Fluid sprinkling, spraying, and diffusing
Processes
Of discharge modification of flow varying
118302, 239135, 239290, 239424, 239432, 427377, 427421, B05B 716, B05B 1704
Patent
active
041323572
ABSTRACT:
An apparatus and method for the spray application of solvent-thinned coating compositions whereby optimum coverage of a substrate with a liquid film is consistently achieved without incurring sagging, run-off or surface irregularities, such as orange peeling, in spite of wide fluctuations in the temperature and/or humidity of the surrounding atmospheric environment. In accordance with the invention, a shroud is provided which is disposed in encompassing relationship around the spray nozzle to which air is supplied at a controlled temperature and/or humidity which envelopes and becomes entrained in the spray forming a controlled localized atmosphere and achieving a controlled vaporization of solvent from the liquid droplets during the course of their travel from the nozzle to the surface of the substrate being coated.
REFERENCES:
patent: 2481813 (1949-09-01), Bede
patent: 2644717 (1953-07-01), Kopperschmidt
patent: 2868166 (1959-01-01), Brechenmacher
patent: 2980786 (1961-04-01), Chilton
patent: 3686023 (1972-08-01), Edwards et al.
patent: 3857511 (1974-12-01), Govindan
Inmont Corporation
Kashnikow Andres
Saifer Robert W.
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