Device for coating a web of material traveling around a backing

Details Device for coating a web of material traveling around a backing Device for coating a web of material traveling around a backing

1988-09-01

1990-02-13

Hoag, Willard

Coating apparatus

Solid member or material acting on coating after application

Running length work

B05C 104, B05C 1104

Patent

active

048996874

ABSTRACT:
A device for coating a web of material traveling around a backing roller, with a flexible doctor having a foot secured in a clamping beam and a point supported by a supporting strip and with pressure-adjusting mechanisms positioned above the width of the doctor and acting independently of each other on individual points on the doctor. The pressure-adjusting mechanisms below the supporting strip act on the doctor. In another embodiment, the pressure-adjusting mechanisms consist of several adjacent chambers that extend over the operating width and can be independently pressurized, each with an elastic wall that faces the doctor.

REFERENCES:
patent: 2352337 (1944-06-01), Meyer
patent: 2920557 (1960-01-01), Fuchs
patent: 3255038 (1966-06-01), Coghill
patent: 3389655 (1968-06-01), Lorenz et al.
patent: 3453137 (1969-07-01), Penkala
patent: 3688336 (1972-09-01), Costello et al.
patent: 3882817 (1975-05-01), Zink
patent: 4375202 (1983-03-01), Miller
patent: 4780336 (1988-10-01), Damrau

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