Method of and apparatus for applying a viscous medium to a substrate
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United States of America Patent
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Nov 12, 1985
Grant Date -
N/A
app pub date -
May 25, 1984
filing date -
May 25, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A viscous medium such as a fabric treatment foam is applied to a fabric web by a distributing device extending across the continuously moving web. The foam is pressurized in a first stage and delivered over a long pipe to a distributing chamber of the device where it is distributed over the entire width of the web. The foam is then admitted into a compartment in which it can form a column surmounted by a float to establish a lower second pressure stage and at this lower pressure the foam passes to a pressure generator which forces the foam from a slot-like orifice at a third pressure higher than the second pressure.
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