Plastic and nonmetallic article shaping or treating: processes – Stereolithographic shaping from liquid precursor
Patent
1997-06-17
2000-07-04
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
Stereolithographic shaping from liquid precursor
249134, 162217, 162387, 162411, 264 87, 264219, 425 85, D21F 148
Patent
active
060834471
ABSTRACT:
An apparatus and method for molding articles from a fibrous slurry. The apparatus comprises a forming die manufactured from a water insoluble, porous, relatively rigid and easily shaped material having molding surface shaped to the contour of the article to be molded, a vacuum vessel for receiving the forming die, and an opening through the vacuum vessel for communicating with a vacuum means for applying suction through the forming die to draw the slurry against the molding surfaces to form a fiber layer having the configuration of the article to be molded. The method for molding articles from a fibrous slurry comprises the steps of producing a forming die having molding surfaces contoured to the shape of the article to be molded using hand-held cutting tools, or manual tools, or automatically with computer controlled tools; inserting the forming die into the fibrous slurry; applying suction through the forming die to draw the fibrous slurry against the molding surfaces of the forming die; and removing the forming die from the fibrous slurry.
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Cin-Made Packaging Group, Inc.
Derrington James
Smith Mark F.
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