Powder supply device
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United States of America Patent
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Jun 28, 2016
Grant Date -
Jul 9, 2015
app pub date -
Dec 18, 2014
filing date -
Jan 7, 2014
priority date (Note) -
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Abstract
Provided is a powder supply device that can stably supply powder from a main hopper to a powder supply means including a sub-hopper without requiring component replacement and the like. The powder supply device is provided with: a first piping that guides powder accumulated in a main hopper downward; a second piping that is connected to the first piping at a lower end portion thereof while intersecting with the first piping, and that guides the powder guided by the first piping to a sub-hopper; and a switching valve that pressure-feeds the powder temporarily deposited while forming an angle of repose at an intersecting portion of the first piping and the second piping, to the sub-hopper.
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