Vacuum loader for conveying powder
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United States of America Patent
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Oct 27, 2015
Grant Date -
Jun 4, 2015
app pub date -
Aug 13, 2013
filing date -
Aug 14, 2012
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Abstract
Plastic powder/dust is cyclonically pulled into the loading chamber by vacuum. The finer dust rises due to the flow of air upwardly through a separation chamber, and a coaxially arranged intensifying chamber communicates with the lower portion of the loading chamber by a tube that recovers the finer dust. At least two filters between the vacuum unit and the separator, are sequentially activated during phases of successive cycles, so the inactive filter can be cleared of dust by admitting ambient air so the cleared dust is delivered to the loading chamber. Multiple miniature cyclonic separators are provided atop the primary loader in a version without filters.
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