Film applicator with adjustable dynamic extraction flow regulator
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United States of America Patent
Stats
-
Mar 16, 1999
Issued Date -
N/A
app pub date -
Jul 14, 1997
filing date -
Aug 22, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A short dwell coater and film applicator coating has an application chamber between an inlet overflow baffle plate and a final metering element. An adjustable wedge is spaced in the machine direction from a fixed wedge to define a gap which serves as a coating extraction port. A cylindrical rod is positioned in the extraction port which is about 3/8th to about two inches in diameter and is driven to rotate at a rate of between one and one-hundred rpm. The rod serves to extract air and coating from the application chamber. Alternatively, an adjustable plate may be positioned to obstruct an opening leading to the extraction port.
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