Screw conveyor

Details Screw conveyor Screw conveyor

1995-06-01

1996-11-12

Lithgow, Thomas M.

Liquid purification or separation

Structural installation

Flume stream type

210159, 210413, 100117, 100145, 198608, 198670, 198671, 198677, B01D 2994, B01D 3502, E02B 508, E02B 802

Patent

active

055736602

ABSTRACT:
A screw conveyor including a feed screw formed, at least partially, as a shankless screw, a jacket surrounding the feed screw and a brush cooperating with the inner surface of the jacket for cleaning the same, with the feed screw including a plurality of substantially band-shaped screw threads extending along an imaginary helical line and arranged, when viewed in a transporting direction, one behind the other with an ever increasing distance from a screw axis so that each two adjacent screw threads form a step therebetween, and with the brush being arranged on the step formed by two outmost screw threads.

REFERENCES:
patent: D323414 (1992-01-01), Bruke
patent: D326944 (1992-06-01), Bruke
patent: 2665796 (1954-01-01), Anderson
patent: 3688687 (1972-09-01), Craig
patent: 3695173 (1972-10-01), Cox
patent: 4091693 (1978-05-01), Straub
patent: 4424129 (1984-01-01), Bunger
patent: 4779528 (1988-10-01), Bruke
patent: 4859322 (1989-08-01), Huber
patent: 4922768 (1990-05-01), Bruke
patent: 4961864 (1990-10-01), Bruke
patent: 5000307 (1991-03-01), Bruke
patent: 5092453 (1992-03-01), Bruke
patent: 5421251 (1995-06-01), Bruke

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