Coating apparatus – With heat exchange – drying – or non-coating gas or vapor... – To remove or spread applied coating by gas blast
Patent
1978-07-12
1980-12-09
McIntosh, John P.
Coating apparatus
With heat exchange, drying, or non-coating gas or vapor...
To remove or spread applied coating by gas blast
118419, B05C 1106
Patent
active
042378150
ABSTRACT:
A nozzle and associated apparatus for controlling the thickness of liquid coating on continuous webs which produces a thin jet of fluid for impingement across the width of moving web having a liquid coating thereon, the fluid in the portions of the jet on either side of the center of the nozzle having components of motion toward the edges of the web. One form of nozzle structure for achieving such lateral movement of the fluid issuing from the nozzle involves baffle means in the path of the fluid flowing through the nozzle which changes the direction of flow of the fluid so as to give the fluid on either side of the central portion of the nozzle a component of motion toward each end portion of the nozzle. Still another form of nozzle structure combines the foregoing features with the so-called curved orifice nozzle where operating conditions indicate the desirability of some build-up of coating on the central portion of the web.
REFERENCES:
patent: 448888 (1891-03-01), Salmon
patent: 1140873 (1915-05-01), Carter
patent: 2242182 (1941-05-01), McCann
patent: 2650131 (1953-08-01), Spooner
patent: 2685146 (1954-08-01), Stevens
patent: 3434662 (1969-03-01), Daghistani
patent: 3436022 (1969-04-01), Ernst
patent: 3499418 (1970-03-01), Mayhew
patent: 3566451 (1971-03-01), Weigand
McIntosh John P.
National Steel Corporation
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