Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – To form particulate product
Patent
1988-09-06
1991-01-08
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
To form particulate product
425310, 425331, 425365, 425812, 425DIG230, B28B 318, B29B 906
Patent
active
049833430
ABSTRACT:
A pressure roller for cooperative drive relation with an inner annular surface of an annular rotative extrusion die of a pellet mill is provided. The pressure roller includes a substantially circular ring having a substantially circular cross-section, a circumferential outer surface and a longitudinal axis. The circular ring includes air relief mechanism, including an air relief channel, in the outer surface for channeling air escaping from particulate feed material compressed between the roller and the inner surface of the extrusion die. The channel extends at an angle with respect to a line parallel to the longitudinal axis.
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International Multifoods Corporation
Mackey James P.
Woo Jay H.
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