Temperature compensated doctor blade

Details Temperature compensated doctor blade Temperature compensated doctor blade

1975-08-11

1977-05-24

McIntosh, John P.

Coating apparatus

With vacuum or fluid pressure chamber

118261, 118DIG23, B05C 100, B05C 1104

Patent

active

040248348

ABSTRACT:
A temperature compensated doctor blade system is disclosed for controlling the amount of liquid on a substrate. Variation in temperature is found to cause wide variation in liquid viscosity which affects doctor blade pressure requirements. An expandable chamber containing a temperature responsive fluid is used to control the pressure applied to a flexible doctor blade.

REFERENCES:
patent: 3029779 (1962-04-01), Hornbostel
patent: 3029780 (1962-04-01), Justus et al.
patent: 3529315 (1970-09-01), Dunlap et al.
patent: 3667428 (1972-06-01), Smith
patent: 3888173 (1975-06-01), Ritzerfeld
patent: 3918400 (1975-11-01), Cheeseman

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