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Method for dispensing of powders

  • US 5,934,343 A
  • Filed: 03/31/1998
  • Issued: 08/10/1999
  • Est. Priority Date: 03/31/1997
  • Status: Expired due to Fees
First Claim
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1. A method for dispensing and distributing a powder, comprising the steps of:

  • (1) dispensing a powder by gravity feed from a hopper onto a platen, said platen being in a first platen position, where the first platen position is below said hopper;

    (2) conveying said platen horizontally from the first platen position to a second platen position, where the second platen position is adjacent to a build bed;

    (3) distributing said powder from said platen in the second platen position over said build bed with a spreader, said spreader moving horizontally from a first spreader position to a second spreader position to distribute said powder across said build bed;

    (4) returning said spreader from the second spreader position to the first spreader position; and

    (5) returning said platen to the first platen position.

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