Foam-based manufacturing system and process
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United States of America Patent
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Mar 19, 2024
Grant Date -
Mar 9, 2023
app pub date -
Dec 30, 2020
filing date -
Dec 31, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A system comprising a pulper configured to (i) accept surfactant, a liquid and fiber stock and (ii) generate a foam that suspends the fiber stock, wherein the foam has a half-life; a headbox configured to receive the foam-suspended fiber stock from the pulper and displace the foam-suspended fiber stock onto a forming wire, wherein a time it takes the foam-suspended fiber stock to move from the pulper to the headbox is less than the half-life; and a foam return device that removes at least some of the foam from the forming wire and returns the at least some of the foam to the pulper.
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