POWDER SUPPLY DEVICE AND POWDER SUPPLY METHOD
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United States of America Patent
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Issued Date -
Jan 22, 2015
app pub date -
Feb 12, 2013
filing date -
Mar 14, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In a rapid load reduction mode for reducing a flow rate of powder to be supplied to the outside of a feed tank to a predetermined rate after a predetermined period of time, a controller sets an internal pressure control valve to an exhaust state and closes a powder discharge valve to a predetermined aperture, and as soon as the powder flow rate becomes smaller than a scheduled powder flow rate that is expected before elapse of the predetermined period of time, the controller controls at least one of the internal pressure control valve and the powder discharge valve so that the powder flow rate becomes the scheduled powder flow rate.
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