Screw machine having a vacuum housing insert
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United States of America Patent
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-
Jan 29, 2013
Grant Date -
Aug 12, 2010
app pub date -
Jan 26, 2010
filing date -
Feb 11, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A screw machine for treating at least partially powdery bulk material has a housing with at least one housing bore and a screw arranged in the housing bore. A vacuum housing portion is provided, which is formed as a vacuum housing insert, which is releasably attached in the housing, in which a metal nonwoven is exchangeably held as a gas-permeable wall portion on a base body.
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