Coating apparatus with tangential slide allowing a vertical and

Details Coating apparatus with tangential slide allowing a vertical and Coating apparatus with tangential slide allowing a vertical and

1985-06-28

1986-12-16

McIntosh, John P.

Coating apparatus

With vacuum or fluid pressure chamber

118407, B05C 502

Patent

active

046288562

ABSTRACT:
Apparatus for the application of at least one coating layer on a web support comprising a coating roll over which the web is driven, a coater within a housing, e.g., adjustable for rotation around the axis of the coating roll, having at least one exit slit and a slide connected thereto over which the liquid coating material flows down by gravity to a coating gap terminating at a point adjacent to the coating roll and a pressure chamber placed in close proximity to the coating gap between the tip of the slide surface and coating roll, the improvement wherein the coating gap is located at a point with respect to the coating roll such that the web is moving in a downwardly direction at that point and the coating material is also moving in a downwardly direction, the pressure chamber located above the coating gap and a tangent to the slide surface adjacent to the slide tip extends about parallel to a tangent to the coating roll at the coating gap.

REFERENCES:
patent: 2681294 (1954-06-01), Beguin
patent: 2761419 (1956-09-01), Mercier et al.
patent: 2933061 (1960-04-01), Galer
patent: 3867901 (1975-02-01), Greiller
patent: 4019906 (1977-04-01), Ridley
patent: 4241689 (1980-12-01), Kobayashi et al.
patent: 4283443 (1981-08-01), Choinski
patent: 4287240 (1981-09-01), O'Connor

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