Venting system for heat treating flat material webs
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United States of America Patent
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-
Mar 9, 1993
Grant Date -
N/A
app pub date -
Mar 22, 1991
filing date -
Mar 23, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A venting system for heat treating flat material webs or films has a drying chamber with a centrally arranged single blower for supplying treatment medium, such as heated and cleaned air, to the surfaces of the flat material. Air guide channels and ducts are so arranged that a single blower is fully sufficient while still obtaining a defined suction withdrawal of the air that has contacted the flat material surfaces. Sets of blowing nozzles face the surfaces of the flat material and are arranged for cooperation with suction nozzles for the return of the treatment medium to the suction side of the blower in a substantially closed treatment medium circulating circuit.
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