Material or article handling – Static receptacle and means for charging or discharging – or... – Nongravity discharging means
Patent
1991-07-08
1994-09-20
Huppert, Michael S.
Material or article handling
Static receptacle and means for charging or discharging, or...
Nongravity discharging means
414306, 414326, B65G 304
Patent
active
053484355
ABSTRACT:
A bin unloading apparatus for unloading materials such as, for example, sawdust, peat, grains, silage, municipal waste, dry chemicals, shredded tires, and other ground bulk products accommodated in a bin, with the bin unloader including two cantilevered tapered screw conveyors and a single standard screw. The screw conveyors draw materials from the walls of the bin toward the center. The materials drop to the exit screw mounted at a right angle to the screw conveyor with the material in the exit screw then being transported out of the bin. The screw conveyors are supported on a head assembly mounted on a support beam of rail using a cam follower bearing and a chain drive system provides a reciprocating motion of the head assembly utilizing a ratchet mechanism driven by a drive of the exit screw. The screw conveyors are attached to the head assembly by a flange attachment and a spring loaded arm or linkage mechanism runs on an eccentric to drive the chain. If the head assembly encounters an obstacle or otherwise encounters a resistance in movement, the spring collapses and does not allow a forward movement of the head until the obstruction or resistance is removed.
REFERENCES:
patent: 3212652 (1965-10-01), Roberts
patent: 3650418 (1972-03-01), Dissmeyer et al.
patent: 3908839 (1975-09-01), Menaut
patent: 4099633 (1978-07-01), Cantenot
patent: 4146144 (1979-03-01), Johansson
patent: 4350467 (1982-09-01), Soros
patent: 4437806 (1984-03-01), Olson
patent: 4717308 (1988-01-01), Kuhns
DMS, Inc.
Huppert Michael S.
Keenan James
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