Pulse-operated point feeder

Details Pulse-operated point feeder Pulse-operated point feeder

1995-06-22

1996-12-31

Hoge, Gary C.

Conveyors: fluid current

Pulsing fluid current

406 89, 406 93, 406194, B65G 5320

Patent

active

055887872

ABSTRACT:
A point feeder for metering powder materials, for example aluminum oxide, to a Hall-Heroult electrolysis cell includes a vertical tube and a horizontal tube which are joined so that they form substantially an L-shaped channel with a material input at an upper end of the vertical tube and a material output at an end of the horizontal tube. The vertical tube is provided with a nozzle device which has one or more downward-facing holes which allow air to penetrate in the form of pulsed air flows to the lower part of the vertical tube and to the whole of the horizontal tube.

REFERENCES:
patent: 490584 (1893-01-01), McClave
patent: 894813 (1908-08-01), Buzzell et al.
patent: 1971853 (1934-08-01), Ihlefeldt
patent: 2867478 (1959-01-01), Shale
patent: 4185942 (1980-01-01), Bazan
patent: 4451184 (1984-05-01), Mitchell

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