Coating apparatus with air-nozzle arrangement
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United States of America Patent
Stats
-
Nov 29, 1983
Grant Date -
N/A
app pub date -
Dec 7, 1981
filing date -
Dec 19, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an apparatus for the continuous, uniform coating with a liquid coating material of a web passing over a counter roll, comprising an air-nozzle arrangement for the removal of excess coating material and the smoothing of the coating, said air-nozzle arrangement being rotatable about its longitudinal center axis, being disposed adjacent to the counter roll and comprising two slot nozzles disposed symmetrically about its longitudinal center axis and displaced 180 degrees relative to each other, each nozzle extending at least over the width of the web, and the two lips of each nozzle being seated on nozzle-lip holders mounted on the casing of the air-nozzle arrangement, the improvement which comprises imparting to the nozzle-lip holders an angular construction and mounting them on the casing in such a way that they can be positioned and adjusted in the direction of the nozzle-slot width; one of the nozzle-lip holders being of smaller cross section over its angled area than the other nozzle-lip holder; the nozzle-lip holders of each slot nozzle being interconnected through adjustable means exerting a pulling and pushing action and which are distributed over the length of the slot nozzle.
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