Withdrawal of particulate material from a hopper

Details Withdrawal of particulate material from a hopper Withdrawal of particulate material from a hopper

1979-02-09

1980-09-09

Reeves, Robert B.

Conveyors: fluid current

Intake to fluid current conveyor

Conveyor having plural intakes

406123, B65G 5338, B65G 5324

Patent

active

042215102

ABSTRACT:
Pneumatically-conveyable particulate material is withdrawn from a hopper using vacuum wands extending into the interior of the hopper. The wands are operated in a cyclic sequence, with material being withdrawn from each wand in turn. This permits material to be withdrawn substantially continuously where the material tends to compact together in flow-preventing bridges and the invention can be put into practice employing a relatively simply applied attachment connected on the exterior of the hopper.

REFERENCES:
patent: 489340 (1893-01-01), Stoner
patent: 730934 (1903-06-01), Leary
patent: 2673127 (1954-03-01), Gebhardt
patent: 3224648 (1965-12-01), Zimmerman
patent: 3316028 (1967-04-01), Lloyd
patent: 3544167 (1970-12-01), Fuchu et al.

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