Powder classification system and method
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United States of America Patent
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Feb 13, 2018
Issued Date -
N/A
app pub date -
Dec 4, 2014
filing date -
Dec 18, 2013
priority date (Note) -
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Abstract
A powder classification apparatus (10; 110; 210) includes a first chamber (12; 112; 212) that includes a fluidized bed and has an inlet (16; 116; 216A) and an outlet (18; 118; 218), the inlet (16; 116; 216A) configured to receive a gas (G) and distribute the gas (G) in a uniform flow through the first chamber (12; 112; 212), the first chamber (12; 112; 212) configured to receive a powder (P) and the gas (G) and create a fluidization zone, the outlet (18; 118; 218) configured to allow at least a portion of the powder (P) to exit the first chamber (12; 112; 212); and a second chamber (14; 114; 214) having a powder inlet (24; 124; 224) configured to accept at least a portion of the powder (P) from the outlet (18; 118; 218) in the first chamber (12; 112; 212) caused by at least a portion of the powder (P) being ejected from the first chamber (12; 112; 212) by the gas (G).
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