Finger-type doctor blade holder

Details Finger-type doctor blade holder Finger-type doctor blade holder

1985-12-11

1987-05-19

McIntosh, John P.

Coating apparatus

Solid member or material acting on coating after application

Running length work

1525651, 118261, B05C 1104

Patent

active

046658599

ABSTRACT:
A finger-type doctor blade holder has a plurality of pressure fingers spaced along the underside of a loading plate. A doctor blade is removably supported in recesses defined between the pressure fingers and the loading plate, and the pressure fingers are mounted for pivotal movement about an axis extending across the surface to be doctored. A flexible loading tube is located alongside the finger pivot axis in a tube tray, and a force transmitting member is interposed between the pressure fingers and the loading tube. The rigidity of the force transmitting member prevents upward bulging of the loading tube between the pressure fingers, and the surface of the loading tube is indented by either the force transmitting member or a separate member at the base of the tube tray. The indentation in the tube surface enables the tube to act as a rolling diaphragm when compensating for variations in the distance between the pressure fingers and the base of the tube tray.

REFERENCES:
patent: 3163878 (1965-01-01), Smith et al.
patent: 3748686 (1973-07-01), Winterburn et al.
patent: 3803665 (1974-04-01), Winterburn et al.
patent: 4192709 (1980-03-01), Dunlap

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