Method for packing food
AssigneeWorld Class Packaging Systems, Inc.
InventorsMichael P. Gorlich, Robert F. McPherson, Jr.
Life of this patent
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Abstract
A reproducible and reliable method for packaging food which may include an automatic temperature control system. The film is sealed to the tray at a first location spaced inwardly from the peripheral edge of the tray. The film is then severed. At appropriate times, excess heat may be removed from the inside of the sealing and severing apparatus. The upper housing of the severing apparatus may have a cooling vent which is automatically operated to exchange the hot atmosphere which is collected in the upper part of the chamber.
Claims15
A method of securing a film to a tray to make a modified atmosphere package, comprising the steps of:
- covering said tray with film inside a substantially closed chamber;
- maintaining an atmosphere having a gas concentration different than normal atmosphere inside the closed chamber;
- sealing said film to said tray;
- severing excess film from said tray;
- and
- automatically exhausting atmosphere from within said chamber to the outside of the chamber so as to cool the chamber and control the temperature inside said chamber and inletting replacement gas from a location below the location from which atmosphere is exhausted so as to encourage upward exhaust gas flow.
Dependencies are inferred from the claim text.