Sealed container for use in cooking with improved heat-seal line

Details Sealed container for use in cooking with improved heat-seal line Sealed container for use in cooking with improved heat-seal line

1987-03-27

1989-05-30

Marcus, Stephen

Special receptacle or package

With pallet feature

Knockdown or collapsible type

206632, 220359, 220360, 220363, 229 25R, 229 48T, 2291231, 383100, 383107, B65D 5116

Patent

active

048342475

ABSTRACT:
A sealed container for use in cooking which has a heat-sealed portion partially opened when there is an increase in the internal pressure during heat cooking of various kinds of food including frozen foods contained therein so as to prevent rupture or deformation of the container, as well as the possibility of the contents boiling over as a result of rupture of the container. The sealed container of the present invention includes a container body provided at the opening thereof with a flange, and a lid, and a heat-sealed strip capable of peeling off is formed on the flange portion, at least one portion of the heat-sealed strip being formed in such a manner as to project toward the interior of the container, and the outer edge of the heat-sealed strip at that position and an innermost point of the outer edge of the heat-sealed strip being disposed on the inner side of a line connection the starting point of the projecting portion located on the inner edge of the container.

REFERENCES:
patent: 3172768 (1965-03-01), Joosten et al.
patent: 3510054 (1970-05-01), Sanni et al.
patent: 3547338 (1970-12-01), Hemmes
patent: 3854653 (1974-12-01), Engelsberger
patent: 3937396 (1976-02-01), Schneider
patent: 3997677 (1976-12-01), Hirsch et al.
patent: 4091930 (1978-05-01), Buchner et al.
patent: 4203520 (1980-05-01), Schuster
patent: 4210674 (1980-07-01), Mitchell
patent: 4355721 (1982-10-01), Knott, II et al.
patent: 4428494 (1984-01-01), Hirota et al.
patent: 4456164 (1984-06-01), Foster et al.

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