Fluid sprinkling – spraying – and diffusing – Injection nozzle having plunger or valve controlled by...
Patent
1998-04-23
2000-11-21
Jenkins, Daniel J.
Fluid sprinkling, spraying, and diffusing
Injection nozzle having plunger or valve controlled by...
B22F 906
Patent
active
061490725
ABSTRACT:
An improved system for forming a three-dimensional object by selective deposition of a forming material includes a crucible for holding a reservoir of the forming material, an orifice disposed in the bottom of the crucible through which the forming material flows towards the substrate, and a droplet deposition apparatus for generating a sequence of droplets from said flow of forming material and for selectively depositing the droplets on a substrate exclusively where required to form the three-dimensional object. In a preferred embodiment, the forming material is ejected from the crucible as a variable-diameter circular liquid jet or planar jet, which breaks up into a sequence of variable-diameter droplets. Drops to be discarded are electrically charged and deflected away from the substrate by an electromagnetic deflecting device.
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Arizona State University
Jenkins Daniel J.
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