Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1993-05-10
1994-11-08
Theisen, Mary Lynn
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264109, 264308, 425174, 425447, 425449, B29C 6700
Patent
active
053624270
ABSTRACT:
Apparatus and method for supporting at least a portion of an article while the article is being formed. A source of self-adhering particles is directed by a particle jetting device, or the like, to a predetermined position in a controlled environment to form the article. A support structure is carried in the controlled environment for substantially rigidly supporting at least a portion of the article during the formation of the article (by build-up of the self-adhering particles). The support structure is a fluid which changes state to a solid responsive to an electrical charge and reverts back to a fluid responsive to removal of the electrical charge.
REFERENCES:
patent: 4665492 (1987-05-01), Masters
patent: 5134569 (1992-07-01), Masters
patent: 5136515 (1992-08-01), Helinski
patent: 5216616 (1993-06-01), Masters
patent: 5257657 (1993-11-01), Gore
"3D Protoypes Shot From a Nozzle" Machine Design Jun. 21, 1990, p. 82.
"Rapid Prototyping Shapes Up as Low-Cost Modeling Alternative" Modern Plastics, Aug. 1990 pp. 40, 41, 43.
Garvin, Jr. John C.
Hilton Harold W.
Theisen Mary Lynn
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