Curtain coater with pivoted starting plate

Details Curtain coater with pivoted starting plate Curtain coater with pivoted starting plate

1989-06-02

1990-05-08

Hoag, Willard

Coating apparatus

Projection or spray type

Endless conveyer for work

118DIG4, 427420, B04C 104

Patent

active

049228510

ABSTRACT:
A curtain-type coating liquid application device having a slide hopper and an application start plate used to prevent an increase in the thickness of the initially applied portion of the liquid on a web to thereby make the initial coating portion flat and smooth. Liquid freely falling in the form of a thin curtain from the slide hopper is caused to collide against the web continuously moving around a backup roller so that the liquid is applied to the web. The application start plate is curved or bent and is turnable about a fulcrum located under the backup roller. The application start plate also has an upper end extending at an oblique angle to the direction of width of the curtain, or it may be provided with a curtain receiving part at the upper end of the plate.

REFERENCES:
patent: 3434457 (1969-03-01), Bass
patent: 3508947 (1970-04-01), Hughes
patent: 3632374 (1972-01-01), Greiller
patent: 3867901 (1975-02-01), Greiller
patent: 3958532 (1976-05-01), Timson
patent: 4019906 (1977-04-01), Ridley
patent: 4222343 (1980-09-01), Zimmerman
patent: 4233346 (1980-11-01), Kerkhofs
patent: 4313980 (1982-02-01), Willemsens
patent: 4479987 (1984-10-01), Koepke et al.
patent: 4851268 (1989-07-01), Kozak

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