Low-pressure flow-controlled powder spreader
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United States of America Patent
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Apr 16, 2013
Grant Date -
Jun 11, 2009
app pub date -
Oct 27, 2005
filing date -
Oct 29, 2004
priority date (Note) -
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Abstract
The invention relates to a powder spreader device including a sealed tank (1) with a tapered bottom wall (5), a vessel (2) containing a pressurised spray gas connected to the tank (1) via a feed line (27), control means (20) connected to the vessel (1), and a powder dispensing nozzle (10) connected to the tank, wherein the elongate nozzle (10) includes at least two pressure relief stages (11, 12) for breaking up the dispensed powder jet and forming a uniform and homogenous jet with a relatively low flow rate.
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