Package making – Methods – With contents treating
Reexamination Certificate
2007-07-24
2007-07-24
Sipos, John (Department: 3721)
Package making
Methods
With contents treating
C053S442000, C053S450000, C053S479000, C053S375600
Reexamination Certificate
active
11214733
ABSTRACT:
Disclosed is a method for high-speed vacuum unitary packaging of portion-cut meats, wherein a vacuum four-side sealed object containing a plurality of portion-cut meats obtained by dividing a livestock meat, such as beef, pork, chicken, or the like, or a large-size fish into many portions, is divided into four-side sealed objects with vacuum being maintained at high speed using an impulse sealer for vacuum unitary packaging. At least two portion-cut meats are loaded on a conveyor with a prescribed spacing being given between portion-cut meats; a vacuum four-side sealed object is formed by using upper and lower wrapping films having gas-barrier properties and inner surface thermal fusion bonding properties to integrally vacuum package the portion-cut meats; a flat part between portion-cut meats in the vacuum four-side sealed object is fusion bonded by using a heat impulse sealer for heating film layers from both above and below to form at least two seal lines; and the films between the at least two seal lines are secondary cut, with a second energization of lower heater wires and secondary cutting being simultaneously performed after a first energization of upper heater wires has been completed, or with a second energization of upper heater wires and secondary cutting being simultaneously performed after a first energization of lower heater wires has been completed.
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patent: 3289386 (1966-12-01), Farmer
patent: 4735675 (1988-04-01), Metz
patent: 5666788 (1997-09-01), Tolson
patent: 5715645 (1998-02-01), Fukuda
patent: 2002/0083683 (2002-07-01), Suga
Hanai Toshio
Ogiue Haruo
Best Pack Co., Ltd.
Sipos John
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