Resealable sack or bag
AssigneeWindmoeller & Hoelscher KG
InventorKonrad Tetenborg
Life of this patent
Estimating the term…
Abstract
A sack or bag is made of a collapsed, thermoplastic tubular film segment, which is provided preferably with side folds, by affixing head and foot welds and is provided on at least its head side with corner-partitioning corner welds. In order to be able to reseal such a sack after a partial quantity has been removed from its filling, the corners are provided in such a manner with cutouts, starting from the face-sided cutting edge, that the results are side strips, whose outer ends are provided with redetachable connecting means and that are designed so long that they can be folded in the outward direction by folding diagonally over the side edges of the sack or bag. After formation of a sack-sealing roll, the connecting means can be connected together for the purpose of fixing the roll in position.
Claims18
A resealable bag, comprising:
- a thermoplastic tubular film segment having a head weld, a cutting edge extending substantially parallel to said head weld, side edges and two corners, each of said corners provided with a cutout which starts from said cutting edge to create a side strip on each corner, each of said side strips having a length that can be folded diagonally outwardly beyond said side edges;
- corner-partitioning corner welds crossing over and extending from said head weld to a respective side edge of said bag;
- and
- a connecting element attached to an outer end of each of said side strips for attaching to each other to reseal said bag when said head weld is removed and said strips are diagonally folded and rolled together.
A resealable bag for bulk material made of a thermoplastic tubular film segment with side folds, comprising:
- a head weld for initially sealing said bag;
- a cutting edge running substantially parallel with said held weld for opening said bag;
- side edges extending substantially perpendicular to said head weld;
- two corners, each of which is provided with a cutout which creates a side strip on each corner, each of said side strips having a length that can be folded diagonally outwardly beyond said side edges;
- corner welds crossing over and extending from said head weld to a respective side edge of said bag, said corner welds extending beneath said cutouts such that fill material within said bag does not pass into said side strips;
- and
- a connecting element attached to each side strip for attaching to each other to reseal said bag when said head weld is removed and said side strips are diagonally folded and rolled together.
Dependencies are inferred from the claim text.