Recirculating air calender roll controller
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United States of America Patent
Stats
-
Mar 31, 1987
Grant Date -
N/A
app pub date -
May 7, 1985
filing date -
May 7, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is directed toward a controller for controlling local calender roll diameters by directing temperature controlled fluid against selected slices of a rotating calender roll. The calender roll has a diameter which responds to changes in temperature. Therefore, thermal expansion or contraction, resulting from localized heating or cooling of the calender roll by the temperature controlled fluid, corrects local non-uniformities in the spacing between cooperating calender rolls. The invention conserves energy by recirculating the temperature controlled air.
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