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US 5,069,596 AGranted
Bulk bag handling and discharging apparatus
AssigneeLawter International, Inc.
InventorsHermann Mueller, Timothy J. Hendron, David Dawood
Life of this patent
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Abstract
A method and apparatus for handling and discharging bulk bags allowing dosage control is disclosed. A bulk bag is hung from a maneuverable frame with a pair of winches mounted thereon. After opening the bottom of the bag, actuation of the winches tightens a cable looped around the lower portion of the bag to restrict the flow of material out of the opening. A bulk bag specially adapted for the method is also disclosed.
Claims15
A bulk bag handling and discharging apparatus to be used in conjunction with an external hoist means having at least one tyne, comprising:
- a generally horizontally-oriented base frame mounted on casters;
- a vertically-oriented support frame rigidly connected to the base frame;
- a cross-beam slideably mounted on the vertical support frame for vertical movement between an upper fixed position and a lower fixed position;
- a mechanical stop at the upper end of the vertical support frame which limits the upward travel of the cross-beam, thereby enabling the entire apparatus to be lifted by a vertical force applied to the cross-beam by said hoist means;
- means for locking the cross-beam in both said upper and lower fixed positions, the locking means preventing further vertical travel of the cross-beam with respect to said vertical support frame from the upper and lower fixed positions;
- a bag hanger mounted on the cross-beam upon which may be hung a bulk bag;
- and
- receiving means including the cross-beam for receiving the tynes of said hoist means.
5 more elements
Dependencies are inferred from the claim text.