B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
B65B 51/20 (2006.01) B65B 61/18 (2006.01)
Patent
CA 2079043
A METHOD AND APPARATUS FOR THE MANUFACTURE OF A RESEALABLE PACKAGE ABSTRACT OF THE DISCLOSURE It is often desired to again seal packages, consisting intially of foils hot-sealed with one another, after opening and partial removal of the content in the package in order to at least partially separate the remaining content in the package from the environment. A resealing area is provided for this purpose besides the hot-sealing area, with which the top and the bottom foil are connected to one another, which resealing area consists of individual closing elements which, fitting into each other, are provided in the two foils. The foils are not threadlike connected with one another in the resealing area. Rather dotlike closing elements exist, which also permit a small undercut. They are formed in matrixes without a top die, which matrixes are thereby subjected to an underpressure, whereas the other side of the foil is under an excess pressure. The deformation is thus brought about purely pneumatically. The shape of the closing elements can in this manner be designed in many ways and can be easily adapted to the requirements of each individual package.
Fux Rudolf
Schmeck Alfred
Fetherstonhaugh & Co.
Tetra Laval Convenience Food Gmbh & Co. Kg
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