Center ring provided with wings
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United States of America Patent
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Jun 13, 2023
Grant Date -
Aug 12, 2021
app pub date -
Feb 3, 2021
filing date -
Feb 12, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a center ring arrangeable on a refining disc of a defibrator for refining of fibrous material, wherein said center ring comprises a circumferential outer surface, a circumferential inner surface and a centrally located through-hole adapted to receive fibrous material fed from a feeding device, wherein said outer surface is provided with a circumferentially running groove opening up on the outer surface and being adapted to collect steam produced during operation of said defibrator, and wherein the center ring further comprises a plurality of wings provided on said inner surface and a number of channels extending from said groove to the positions on said inner surface where said wings are provided.
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