Three-dimensional printer
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United States of America Patent
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-
Mar 30, 2010
Grant Date -
Jan 8, 2009
app pub date -
Aug 15, 2008
filing date -
Dec 20, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A three-dimensional printer uses inkjet-type printheads to rapidly prototype, or print, a three-dimensional model. A powder feeder includes a conveyor system and a metering system to deliver powder to a build area in measured quantities. The powder feeder also includes a vacuum system for loading powder into a feed reservoir or chamber. The vacuum system can also be used to cleanup excess powder. Other powder control features include powder gutters and magnetic powder plows. During printing, a cleaning system operates to remove powder from the printheads. In the event of a printhead or jet failure, the failure can be detected and corrective measures taken automatically. After printing, the model can be depowdered and infiltrated in an enclosure.
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Cited Art Landscape
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