Plant for producing non-woven fabric
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United States of America Patent
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Dec 27, 2022
Grant Date -
Jul 1, 2021
app pub date -
Dec 3, 2020
filing date -
Dec 6, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
Plant for producing non-woven fabric, which comprises a cooling chamber provided with a first and with a second cooling section traversed by filaments of non-woven fabric. In addition, the plant comprises a feed duct connected to the cooling chamber in order to convey, within the latter, a cooling gas by means of the action of a fan, and provided with a first and with a second valve arranged for determining corresponding flows of the cooling gas to be introduced, respectively, in the first and in the second cooling section. A pressure sensor is employed in order to determine the pressure in the cooling chamber, by controlling the fan in a feedback manner.
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