Food or edible material: processes – compositions – and products – Packaged or wrapped product – Having destructive type opening utilizing tearing appendage
Patent
1975-07-21
1977-10-25
Weinstein, Steven L.
Food or edible material: processes, compositions, and products
Packaged or wrapped product
Having destructive type opening utilizing tearing appendage
206484, 229 43, 426106, 426121, 426129, B65D 564, B65D 8572
Patent
active
040556719
ABSTRACT:
A sealed package comprising a cup-shaped container of relatively heavy-gauge, semi-rigid (form-retaining) plastic, with a protective member of relatively stiff material over the opening. Between the container and the protective member is a hermetic sealing closure member in the form of a relatively thin (flexible) plastic film secured around the rim of the cup. The package interior is evacuated and atmospheric pressure stretches the flexible film into the cup to engage the packaged article(s) across the full width thereof, i.e., up to the side walls of the cup. A relatively rigid and planar paper board sheet overlies the flexible film and is secured thereto by an adhesive stronger than the bond between the flexible film and the semi-rigid cup.
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Hamilton Joel A.
Mahaffy Reid A.
Pinney Wesley W.
Mahaffy & Harder Engineering Company
Weinstein Steven L.
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