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US 4,785,933 AGranted
Pouch produced from a flexible sheet blank
AssigneeFocke & Co. (GmbH & Co.)
InventorHeinz Focke
Life of this patent
Estimating the term…
Abstract
In a (roll-up) pouch, a transverse closing seam 20 can be pulled open (peel-seal seam). The closing seam 20 is formed in the region of a closing strip 22 folded round inwards. This is provided, at the ends or lateral edges, with recesses 23, 24 which allow stable sealing in this region and which thus stabilize the closing seam at the ends.
Claims3
Pouch made of a flexible sheet blank, especially a roll-up pouch for receiving cut tobacco, and comprising:
- a sheet blank (10) provided with an outer coating (11) and an inner coating (12) of differing coordinated thermal sealability;
- a pouch part (13), having a front wall (15) and rear wall (16), for receiving the pouch contents and closed by means of a pull-open, peel-seal closing seam (20);
- said closing seam (20) being located in the region of a closing strip (22) formed by a folding over of the sheet blank (10) so that the inner and outer coatings (11, 12) of the sheet blank (10) rest against one another and are joined to one another by the closing seam (20);
- and
- recesses (23, 24) at opposite ends of the closing strip (22) and located such that, at said opposite ends, said inner coating on an inner side of said front wall (15) and said inner coating on an inner side of rear wall (16) rest directly against one another and are permanently joined to one another by sealing.
2 more elements
Dependencies are inferred from the claim text.