Hudson-sharp Machine Company

Eric DeSmedt

Eric Loppnow

Michele Allamprese

A method of forming a bag with at least one gusset on one side including the steps of (a) forming a bag blank having a front panel and a back panel connectable along opposite sides, (b) forming a gusset along one side of one of the front and back panels, the gusset comprising first and second gusset panels inwardly V-folded, which gusset panels have a removable gusset portion at a selected position on the one side, (c) adhesively adhering one side of a patch to one of the gusset panels to a location adjacent the removable gusset portion, the patch having a second adhesive on portions extending beyond the one gusset panel location to the removable gusset portion and beyond the V-fold, and (d) removing the removable gusset portion from the gusset.

Method of making bag with interrupted side gussets

A block of bags for a product filling process includes a plurality of bags stacked in overlying relationship. Each bag of the block has a top edge, a bag mouth and opposite first and second side edges. First and second weakened segments extend from adjacent edge points on respective opposite lateral edges of the bag. A central line of perforations extends between inner ends of the first and second weakened segments. A tear-off region is defined between the central line of perforations and the top edge. During automatic filling of the bag, the weakened segments are torn to form an open bag mouth, and the central line of perforations is torn after filling to separate the bag from the block. The weakened segments can be cuts and are spaced from the lateral edges of the bag to define frangible bridges at the lateral edges, wherein the frangible bridges are broken during opening of each bag. The invention also provides a bag filling platform which holds bag lip portions at a depressed elevation so that lip portions that remain on the platform after bags are separated do not interfere with the filling of subsequent bags.

Bag blocks

A block of bags for a product filling process includes a plurality of bags stacked in overlying relationship. Each bag of the block has a top edge, a bag mouth and opposite first and second side edges. First and second edge lines of perforations extend from edge points on respective opposite lateral edges of the bag. The edge points are spaced closely to the bag mouth of the bag. A central line of perforations extends between inner ends of the first and second edge lines of perforations. The central line of perforations is offset from the edge points, away from the bag mouth. A tear-off region is defined between the central line of perforations and the top edge. During automatic filling of the bad, the edge lines of perforations are torn to form an open bag mouth, and the central line of perforations is torn after filling to separate the bag from the block. The bag can alternatively also include first and second substantially longitudinal lines of perforations extending from the central line of perforations upwardly to the top edge of the bag, extending substantially from opposite ends of the central line of perforations, forming corner tear-off regions. The corner tear off regions can be removed before the filling operation. The invention also provides a bag filling platform which holds bag lip portions at a depressed elevation so that lip portions that remain on the platform after bags are separated do not interfere with the filling of subsequent bags.

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Crawfordsville, IN, United States of America

Eric DeSmedt