초록 ▼

A pillow bag is modified to include an air input port that allows inflation of an interply region of the bag. As the interply region inflates, an inner ply rises and becomes an advancing wall, raising the bulk material level in the bag, inclining the bottom of the bag, and pulling excess material aw

A pillow bag is modified to include an air input port that allows inflation of an interply region of the bag. As the interply region inflates, an inner ply rises and becomes an advancing wall, raising the bulk material level in the bag, inclining the bottom of the bag, and pulling excess material away from the drain port all at the same time. In another embodiment, the pillow bag is made with half the initial number of layers folded in half to create the upper and lower plies and the non-fold edges are bonded. Where corner drain ports are used, the bag can be arranged so that an interlayer bond parallel to the fold is parallel to a diagonal of a tote in which the bag sits and so that the interlayer bond is opposite the drain port to enhance bag evacuation. An additional optional feature of the invention is the inclusion of an integral filling conduit or snout on the top of the bag, a mouth of which acts as a fill port to ease filling of the bag. The invention can also be applied to fitted bags.

대표청구항 ▼

[ I claim:] [10.]10. An arrangement enhancing output of viscous contents of a bag including:an air input port formed on a multiple-ply bag, the multiple-ply bag including a plurality of plies of substantially identical perimetral extent, at least one edge of each ply being joined to at least one res

[ I claim:] [10.]10. An arrangement enhancing output of viscous contents of a bag including:an air input port formed on a multiple-ply bag, the multiple-ply bag including a plurality of plies of substantially identical perimetral extent, at least one edge of each ply being joined to at least one respective edge of another ply, the air input port being connectable to a source of pressurized air;an interply region between two plies of the plurality of plies of the bag with which the air input port is in fluid communication so that the interply region can fill with pressurized air from a source of pressurized air when a source of pressurized air is connected to the air input port;a drain extending from an interior of the bag to an exterior of the bag allowing contents of the bag to be emptied when present;a portion of the bag acting as a bottom of the bag; andan inner of the two plies having a bottom part at least partially overlying the bottom of the bag and being arranged so that an increasing portion of the bottom part of the inner ply can become a wall part of the inner ply substantially non-parallel to a the bottom of the bag to increase a depth of the bulk material remaining in the bag.