Jetting layers of powder and the formation of fine powder beds thereby
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 22, 2003
Grant Date -
N/A
app pub date -
Mar 1, 2000
filing date -
May 24, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A powder bed (32) is built up by repeated deposition of a slurry that contains powder. Layers are made by depositing a liquid dispersion of the desired powdered material, which then slip-casts into the forming powder bed to make a new layer (34). The slurry may be deposited in any suitable manner, such as by raster or vector scanning, or by a plurality of simultaneous jets that coalesce before the liquid slip-casts into the bed, or by individual drops, the deposits of which are individually controlled, thereby generating a regular surface for each layer.
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