Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – With liberating or forming of particles
Patent
1991-01-28
1992-03-31
Theisen, Mary Lynn
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
With liberating or forming of particles
264109, 264120, 419 66, 419 68, 4254052, 425418, 425457, 425469, B29C 4302
Patent
active
051006022
ABSTRACT:
A method and apparatus for filling generally cylindrical molds with powder particles is disclosed. A stream of powder particles is fed into a mold, and the powder particles are compacted in spirally formed layers so that the particles are compacted continuously in localized adjacent areas. The powder filling apparatus is comprised of a blade means configured to direct powder particles to spread evenly in the mold and urge the powder particles to compact while the blade means is rotated about an axis. A shaft is attached to the blade means for rotation of the blade means about the axis. A chuck means is slideably mounted on the shaft means through an axial channel, the chuck means being configured for applying force to the shaft while permitting movement of the shaft axially through the channel. A drive means is operatively connected to the chuck means for applying force to rotate the chuck about the axis. The powder particles are filled to a high and uniform fill density by the powder filling method and apparatus of this invention.
REFERENCES:
patent: 4123216 (1978-10-01), Leibrock
patent: 4390488 (1983-06-01), Wessel
patent: 4407648 (1983-10-01), Fosse
patent: 4690791 (1987-09-01), Edmiston
Bewlay Bernard P.
Day James
Davis Jr. James C.
General Electric Company
Magee James
McGinness James E.
Theisen Mary Lynn
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