B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
B65B 55/14 (2006.01) A23L 3/02 (2006.01) B65B 61/02 (2006.01) B65D 81/34 (2006.01)
Patent
CA 2042733
ABSTRACT OF THE DISCLOSURE A method and apparatus for manufacturing a cook-in package which is capable of withstanding a cook/pasteurization cycle while having edges capable of unaided manual tear initiation. The package is made from non-peelable laminated films and has a hermetically- sealed interior pouch for containing a food product. Unaided manual tear initiation is facilitated by a plurality of punctures which are formed In edge portions of the package during or after heat sealing of upper and lower walls of the package to one another. The punctures are preferably formed along an area which is subsequently trimmed to ensure that the perforated area extends entirely to the edges of the package. Hermeticity of the package is ensured by maintaining an unperforated sealed area inwardly of the perforated areas.
Kuethe David F.
Mcfadden Fincham
Oscar Mayer Foods Corporation
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