Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Feed control of material en route to shaping area
Patent
1991-11-12
1993-04-20
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
Feed control of material en route to shaping area
425150, 4251744, B29C 3508
Patent
active
052041247
ABSTRACT:
A apparatus for economically producing both large and small objects wherein a continuous extrusion of viscous liquid is to be dispensed from a nozzle mounted directly adjacent to an object support platform. Preprogrammed movement is achieved between the nozzle and the object support platform in accordance with the size and shape of the object that is to be fabricated. A viscous liquid is to be dispensed a layer at a time resulting in building of the object layer-by-layer from the bottom of the object to the top of the object. Fibers may be added to the viscous liquid when fabricating large objects, thus providing structural reinforcements. The viscous liquid is to be rapidly curable upon the application of light energy with this light energy supplied at a three hundred sixty degree pattern about the nozzle. A light shield immediately adjacent to the nozzle prevents premature curing of viscous liquid. The high viscosity of the liquid retains the controlled shape prior to curing. After a layer is produced by the nozzle, vertical, horizontal or angular relative movement between the nozzle and the object support platform occurs with another layer then being produced.
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Bayless Earl T.
Secretan Stanley
Chiesa Richard L.
Munro Jack C.
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