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AssigneeBeta Raven Inc.
InventorsBenjamin L. Volk, Joseph A. Volk, Jr., Mark R. Kniepmann
Estimating the term…
A liner hoist for a bulk bag in a first embodiment includes a rope and hook for pulling up and tying the liner to prevent its fouling the discharge of material through a bottom pour spout. In a second embodiment, it retracts a liner upwardly from within a bulk bag as dry material is dispensed out the lower end thereof through a pour spout. The second embodiment includes a hook for hooking an eyelet fashioned in the upper end of the liner, a rope attached to the hook and supported by a plurality of pulleys from the bulk bag support framework, a spring extending between the rope and the framework, and cleat through which the rope is threaded to prevent the rope from retracting after the spring is tensioned. In operation, as the liner empties and tends to elongate, the hook lifts the liner from within the bulk bag through the action of the spring, all without operator intervention.
A hoist for suspending a liner, said liner containing a quantity of dry material within a bulk bag, said liner having a pour spout at its bottom through which said dry material is dispensed, said hoist comprising a hook for supporting an upper end of said liner as said bulk bag is supported, and means for biasing said hook upwardly so that said liner is prevented from interfering with said dispensing of dry material through said pour spout.
A hoist for supporting a liner from within a bulk bag, said liner containing a quantity of dry material and having a pour spout in its bottom through which said dry material is dispensed, said hoist comprising a hook for supporting an upper end of said liner as said bulk bag is supported from a support, a rope extending between said hook and a clamp mounted on said support, and a spring extending between said rope and said support for tensioning said liner to thereby prevent its interfering with said dry material as it is dispensed through said pour spout.
A hoist for supporting a liner from within a bulk bag, said liner containing a quantity of dry material and having a pour spout in its bottom through which said dry material is dispensed, said hoist comprising means for attaching said hoist to the top of said liner and means for retracting said liner up and out of said bulk bag as said liner is emptied, said bulk bag having a separate means for support from a bulk bag support.
Dependencies are inferred from the claim text.