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Apparatus and method for forming three-dimensional objects from solidifiable paste

  • US 9,527,244 B2
  • Filed: 02/10/2014
  • Issued: 12/27/2016
  • Est. Priority Date: 02/10/2014
  • Status: Active Grant
First Claim
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1. An apparatus for supplying a solidifiable paste that solidifies when exposed to solidification energy, the apparatus comprising:

  • a solidifiable paste container comprising an open top and a closed bottom, wherein the container has a height, a cross-sectional area perpendicular to the height, and an interior volume for holding the solidifiable paste;

    a spreader having a length defining a first axis, wherein the length of the spreader is located within the cross-sectional area, at least a portion of the spreader extends into the interior volume, and at least one of the spreader and the solidifiable paste container is movable relative to the other of the spreader and the solidifiable paste container while the portion of the spreader extends into the interior volume;

    wherein the spreader is a first spreader, the apparatus further comprises a second spreader, the second spreader has a length along the first axis, at least a portion of the second spreader extends into the interior volume, and at least one of the second spreader and the solidifiable paste container is movable relative to the other of the second spreader and the solidifiable paste container while the at least a portion of the second spreader extends into the interior volume; and

    the apparatus further comprises a spreader assembly comprising the first spreader and the second spreader, wherein the spreader assembly is rotatable about an axis of rotation parallel to the first axis.

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