Vacuum attachment and method
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United States of America Patent
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Feb 1, 2011
Issued Date -
N/A
app pub date -
Dec 12, 2007
filing date -
Dec 18, 2006
priority date (Note) -
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Abstract
A device and method for vacuuming solid particles out of a chemical reactor tube. One embodiment comprises the step of substantially reducing the vacuum level applied to the vacuum conduit when the conduit reaches a desired depth within the reactor tube by using means responsive to the depth to which the vacuum conduit is inserted into the reactor tube.
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