Tank liner and method of installation

Fluent material handling – with receiver or receiver coacting mea – Filling means with receiver or receiver coacting means – Flexible or collapsible receiver

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Details

141114, 141 10, 220403, B65B 104

Patent

active

057946701

ABSTRACT:
A collapsible container liner for use within a bulk container having a substantially rigid top, bottom and side walls and a filler opening in the top wall. The liner is a collapsible bag of a flexible material with top, bottom and sides which correspond to the container walls within the interior of the container. A first opening in the liner top corresponds to the filler opening in the container top wall. A seal is formed between the container top wall and the liner top around the periphery of the filler opening and the first opening. A second opening in the liner top is spaced from the first opening and has an evacuation outlet attached to the liner top around the periphery of the second opening. Air is evacuated through the outlet from the space between the liner and the interior of the container, a vacuum forms which collapses the liner against the container interior surfaces. A removable cap is sealably received in the evacuation outlet to maintain the evacuated condition within the space so that the liner retains its shape conforming to the interior configuration of the container.

REFERENCES:
patent: 3097677 (1963-07-01), Mitchell
patent: 4635814 (1987-01-01), Jones
patent: 5154308 (1992-10-01), Larson

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