Bulk bag with internal baffles

Details Bulk bag with internal baffles Bulk bag with internal baffles

1995-03-14

1995-11-21

Lesmes, George F.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 361, 383107, 383 13, 383119, 383 22, 383 17, 383 41, 383 67, 383109, 383116, B65D 3010, B65D 3302, B65D 3314

Patent

active

054685281

ABSTRACT:
A bulk material transport bag has a plurality of sidewalls, a lower end wall, and an upper wall, defining a bulk material space therewithin. The surrounding sidewalls are formed by a panel of fabric, positioned at each corner of the bag, the panel of fabric formed into a right triangle, so that the first and second legs of the triangle form the outer wall of the bag at each corner, and the third leg (or hypotenuse) of the triangle forms the internal baffle wall of the bag. Each corner triangle is stitched to a flat panel of fabric, defining the remaining central portion of each sidewall, so that when the eight portions of fabric are joined, there is defined the enclosed wall of the bag, together with the baffles formed in the interior of the bag. The bag includes a plurality of rectangular or triangular shaped openings in each of the baffle walls for allowing bulk material to flow therethrough in order to completely fill the bag. The baffle walls include fabric portions between each opening to define a means for maintaining the baffle walls intact under the weight of the bulk material. The bag also provides a plurality of lifting loops sewn to straddle each corner of the bag for easy pickup by a forklift. In an alternative embodiment, the bulk bag is provided with a heavy plastic or polyethylene liner insertable in the bag and including the baffle features.

REFERENCES:
patent: 4946291 (1990-08-01), Schnaars
patent: 5076710 (1991-12-01), Derby
patent: 5165802 (1992-11-01), Derby
patent: 5203633 (1993-04-01), Derby
patent: 5222812 (1993-06-01), Cuddy et al.

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