Receptacles – Receptacle having flexible – removable inner liner – Means for venting air trapped between the liner and its...
Patent
1994-01-18
1995-03-14
Castellano, Stephen J.
Receptacles
Receptacle having flexible, removable inner liner
Means for venting air trapped between the liner and its...
220461, 220420, 220469, B65D 2516
Patent
active
053970209
ABSTRACT:
In a vinyl lined metal tank, the manway or other opening includes a sealed vertical flanged collar that creates a space in the manway between the metal portion of the manway and the vinyl liner. A port extends from the periphery of the flange into communication with the created space. A vacuum maintained within the created space prevents the collapse of the vinyl liner while the tank is empty.
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