Doctor

Details Doctor Doctor

1990-10-12

1992-06-09

Wityshyn, Michael G.

Coating apparatus

Solid member or material acting on coating after application

Running length work

118126, 118261, B05C 1102

Patent

active

051197553

ABSTRACT:
A doctor is provided on a coating device and is fashioned as an oblong doctor bar which from the cross section, transverse to its longitudinal expanse, features an irregular cross section and a coating surface of bow-shaped design which is provided with grooves, as dosing grooves, which extend crosswise or perpendicular to the longitudinal expanse of the bar. The grooves flatten out from their bottom toward the leaving edge of the doctor bar by 10 to 25%, preferably in bow-shaped fashion. Furthermore, they widen in this area making the ribs provided between the grooves disappear. The doctor bar consists preferably of oxide ceramic material, or features on its coating surface a layer from such material.

REFERENCES:
patent: 4870920 (1989-10-01), Kageyama et al.

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