Roll gap controller for regulating coating thickness

Coating processes – Measuring – testing – or indicating – Thickness or uniformity of thickness determined

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Details

118665, 118119, 118126, 427 9, 427359, B05D 312

Patent

active

054097320

ABSTRACT:
A method for regulating the thickness of an applied coating. The method includes passing a web through two members which define a gap between them. A sensor measures periodic variations in the thickness of the coating on the web. An automatic controller analyzes information from the sensor and converts the information into gap adjusting signals. Piezoelectric or magnetostrictive translators adjust the size of the gap to compensate for repeating variations in coating thickness.

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