Annular gap expander pellet former and process of using same

Details Annular gap expander pellet former and process of using same Annular gap expander pellet former and process of using same

1994-05-18

1996-01-30

Davis, Robert B.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

To form particulate product

26421111, 26421121, 425203, 425311, 425313, 425331, 4253823, 4253824, 426516, B29C 4708

Patent

active

054878624

ABSTRACT:
A method and apparatus in the context of a pellet former (10) that is integral to an annular gap extruder/expander (11). A housing (30) is disposed around the annular gap extruder outlet end. Material is received from annular gap (37) on the face of a rotating disc (14) and, upon expansion, is directed into a roller area (43) by feed plows (23) or a screw flight (42). Pellet rollers (24) rotatably mounted on the disc push the material through a ring pellet die (22) disposed around the roller area. Cut off knives (25) attached to the disc cut the material into pellets as it exits the pellet die.

REFERENCES:
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patent: 3807926 (1974-04-01), Morse
patent: 3908025 (1975-09-01), Miller et al.
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patent: 4977908 (1990-12-01), Luke
patent: 5271728 (1993-12-01), Froidevaux et al.
patent: 5366680 (1994-11-01), Foresman
patent: 5399080 (1995-03-01), Van Benthum

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