Feed device for low-density materials

Details Feed device for low-density materials Feed device for low-density materials

1990-01-31

1991-12-31

Sewell, Paul T.

Presses

Concurrent pressing and conveying

Helix-type compressor

100904, B30B 300

Patent

active

050761609

ABSTRACT:
A feed device for low-density particulate materials is disclosed for a pelletizing machine. A fin (25) forming a helicoidal spiral on the outer surface of a tubular dome (24) connected to a drive shaft (23) carries the material to one end of the dome, where the volume of air contained in the bulk material is diverted toward the interior of the dome (24) without causing a flow contrary to the displacement of the material, thus eliminating the problem of flow interruptions caused by air entrapment.

REFERENCES:
patent: 1007622 (1911-10-01), Wurl
patent: 1534008 (1925-04-01), Bongardt
patent: 2705927 (1955-04-01), Graves et al.
patent: 2803038 (1957-08-01), Holland et al.
patent: 2857624 (1958-10-01), Hanzel et al.
patent: 3240169 (1966-03-01), Cunningham
patent: 3812985 (1974-05-01), Lindeborg et al.
patent: 4186658 (1980-02-01), Brown
patent: 4415336 (1983-11-01), Stogi et al.
patent: 4567820 (1986-02-01), Munsell

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