Method for dispensing of powders

Details Method for dispensing of powders Method for dispensing of powders

1998-03-31

1999-08-10

Douglas, Steven O.

Fluent material handling, with receiver or receiver coacting mea

Processes

With material treatment

141 73, 425218, 425253, 425447, 264308, B65B 104

Patent

active

059343435

ABSTRACT:
A method and apparatus for dispensing and distributing a powder is disclosed which uses a rotary dispenser to dispense the powder by gravity onto a movable platen, the platen being movable to a position adjacent to a build bed, where the powder can be distributed across the build bed using a spreader. The method and apparatus are also suited to dispensing of a plurality of powders used in build beds for solid free-form fabrication and three dimensional printing.

REFERENCES:
patent: 4802836 (1989-02-01), Whissell
patent: 5387380 (1995-02-01), Cima et al.
patent: 5647931 (1997-07-01), Retallick et al.

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