Heat seal die and system and method for portion control...

Package making – Methods – Enclosing contents within progressively formed web means

Reexamination Certificate

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C053S370700, C053S373700, C053S551000

Reexamination Certificate

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09954443

ABSTRACT:
This invention encompasses a heat seal die incorporating heat tube technology for controlling the variation of temperature across a heat seal die. The invention also encompasses a system and method for portion control size packaging of flowable liquid-containing condiments in a portion size in the range from 1 to 5 ounces using such a heat seal die.

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patent: 5029430 (1991-07-01), Davis
patent: 5067302 (1991-11-01), Boeckmann
patent: 5881539 (1999-03-01), Fukuda et al.
patent: 6301859 (2001-10-01), Nakamura et al.

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