Aspirator for manipulating filaments
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United States of America Patent
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-
Jul 25, 2023
Grant Date -
Nov 11, 2021
app pub date -
May 5, 2021
filing date -
May 5, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
An aspirator provides linear control over air flow for manipulation of extruded fibers. A distribution manifold has a barrel valve between first and second flow channels, enabling precise, linear control over air flowing from a charge conduit to a pressure chamber surrounding a discharge pipe. Plural orifices in the discharge pipe connect the pressure chamber to the interior thereof, which is configured as a Venturi tube. Discharge pipe surfaces that can contact filaments therein are of hardened material while non-contact surfaces are of lighter materials.
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