Coating apparatus – Solid applicator contacting work – With work-handling or work-supporting
Patent
1983-03-30
1985-06-25
McIntosh, John P.
Coating apparatus
Solid applicator contacting work
With work-handling or work-supporting
118 64, 118245, 118249, 118261, B05C 108, B05C 116
Patent
active
045247153
ABSTRACT:
An apparatus is disclosed for applying a coating material to a sheet material which is particularly useful in connection with preventing evaporation or drying out of the coating material when the apparatus is not in use. The apparatus basically includes a reservoir for containing a supply of coating material and an applicator roll having an applicator surface or surfaces thereon which is rotatably mounted in the reservoir so that coating material is received by the applicator surfaces and applied to the sheet material which is placed in contact therewith during rotation of the applicator roll. In accordance with one aspect, the applicator roll includes a plurality of substantially cylindrical applicator surfaces along the length thereof separated by a plurality of grooves, and a deflector device is provided having protruding portions disposed in the grooves of the applicator roll to cause the sheet material in contact with the applicator roll to separate from the applicator roll and be moved onto raised surface portions of the deflector device, the raised surface portions being such as to prevent contact of the coated surface of the sheet material with the downstream surface of the apparatus as the sheet material leaves the applicator roll. In accordance with other aspects of the apparatus, devices for sealing the reservoir and applicator roll from exposure to the surrounding atmosphere are provided. Additionally, a doctor blade mechanism for controlling the thickness of coating material received on the applicator roll during rotation is disclosed by which the position of the doctor blade with respect to the applicator surface of the applicator roll may be adjusted from a location displaced from the path of movement of a sheet material being fed to the applicator roll.
REFERENCES:
patent: 872392 (1907-12-01), Von Auw
patent: 3294060 (1966-12-01), McIntyre et al.
patent: 3607180 (1971-09-01), Merz et al.
patent: 3608515 (1971-09-01), Tobias
patent: 3752114 (1973-08-01), Knight
patent: 3938950 (1976-02-01), Weiler et al.
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