Openable cardboard lid for extendable popcorn pans

Details Openable cardboard lid for extendable popcorn pans Openable cardboard lid for extendable popcorn pans

1979-09-20

1981-09-08

Garbe, Stephen P.

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

206628, B65D 564, B65D 570

Patent

active

042880270

ABSTRACT:
An openable lid for covering a popcorn pan provided with an expandable top foil, comprises an opening device in the form of two circular score lines cooperating with an angular pull tab and having a protective satellite tab of a semi-circular shape with a base line integral with a circumferential section of the lid, a row of through-cuts extending along the base line and two parallel rows of through-cuts arranged to match the score lines of the opening device when the protective tab is folded-over against the bottom surface of the lid. To prevent an accidental breakage of the extendable aluminum foil bag due to the resistance of the protective tab against bending, the upper row of through-cuts is provided with lateral arcuate through-cuts bridging the lateral edges of the tab and the terminal through-cut lines in the upper row. In addition, the base line is reduced in length by cutting out in the base region lateral notches. Similar V-shaped notches can be also provided in the range of the upper row of the through-cuts.

REFERENCES:
patent: 3144194 (1964-08-01), Cartwright
patent: 3244356 (1966-04-01), Wolowicz et al.
patent: 3391852 (1968-07-01), Waldrop
patent: 3425845 (1969-02-01), Dunn
patent: 4194680 (1980-03-01), Scott et al.
patent: 4194681 (1980-03-01), Scott et al.
patent: 4211360 (1980-07-01), Scott et al.

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