Apparatus for spreading a stream of particles

Details Apparatus for spreading a stream of particles Apparatus for spreading a stream of particles

1977-11-03

1979-03-27

Lake, Roy

Plastic article or earthenware shaping or treating: apparatus

Means for molding powdered metal

Continuous length product formation

425224, 425363, 425466, 425471, B29C 304

Patent

active

041463544

ABSTRACT:
An apparatus for spreading a stream of particles onto a moving carrier. Uses a chute for containing and delivering particles; a screed bar, movable relative to the moving carrier to control the thickness of a layer of particles delivered from the chute to the carrier; and a pair of rotatable cylindrical doctor blades, substantially coaxial with each other and positioned at opposing ends of the screed bar to control the thickness of a layer of particles delivered from the chute to the carrier at opposing ends of the screed bar. The screed bar and the two doctor blades together control the thickness of the center and the two sides of a continuous stream of powder. Preferably the carrier is the bottom roller of a pair of compaction rollers which receive the stream of powder and compact it preparatory to sintering.

REFERENCES:
patent: 2404582 (1946-07-01), Bosomworth
patent: 2882554 (1959-04-01), Heck
patent: 3233837 (1966-02-01), Haber et al.

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