Device and method for unloading large bulk bags

Details Device and method for unloading large bulk bags Device and method for unloading large bulk bags

1995-12-15

1997-07-22

Werner, Frank E.

Material or article handling

Device for emptying portable receptacle

With container opening means

414411, 414 21, 414415, 414403, 414786, 222105, 83929, 533812, 1988611, B65B 6900

Patent

active

056498012

ABSTRACT:
A device for emptying the contents of a bag into a hopper includes an arrangement for lifting the bag to a position higher than the top edge of the hopper, an arrangement for transporting the bag from an intermediate position in a frame to an unloading position including a retractable conveyor as the upper end of the bag is still engaged by the arrangement for lifting, an arrangement of cutters for cutting the lateral sides of the bag and the leading side of the bag to form a flap connected to the bag by the trailing side which flap will be opened by retracting the forward end of the retractable conveyor to allow the flap to open to discharge the contents as the bag is maintained by the arrangement for lifting over the hopper.

REFERENCES:
patent: 3853235 (1974-12-01), Lambert et al.
patent: 4768915 (1988-09-01), Fujioka
patent: 4966311 (1990-10-01), Taylor

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