Apparatus for coating a paper or board web
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United States of America Patent
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May 29, 2001
Grant Date -
N/A
app pub date -
Aug 6, 1999
filing date -
Jun 17, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for coating a paper or board web or the like (7) using a coating mix aerosol generated by means of an ultrasonic atomizer. The output power of a plurality of ultrasonic transducers (15) disposed proximate to a surface of the moving web (7) is passed via a vibrated beam (14) to a coating mix flow (2) flowing proximate to the web (5). Ultrasonic vibrations applied to the coating mix atomize the upper layer of the coating mix flow into an aerosol (11) which is emitted toward the web (7) and adheres thereto.
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