초록 ▼

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

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. Optionally, the container bottom wall can be formed with a discharge outlet lined by a complementarily shaped liner discharge spout sealed adjacent thereto. 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 Air is withdrawn through the evacuation outlet from the space between the liner and the interior of the container, a vacuum forms which collapses the liner against the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.

대표청구항 ▼

[ I claim:] [1.] For use within a bulk container having a substantially rigid top container wall, bottom container wall and side container walls and a filler opening in said top container wall, a collapsible container liner comprising,a collapsible bag of a flexible material having a liner top, a li

[ I claim:] [1.] For use within a bulk container having a substantially rigid top container wall, bottom container wall and side container walls and a filler opening in said top container wall, a collapsible container liner comprising,a collapsible bag of a flexible material having a liner top, a liner bottom, and liner sides which correspond to said container walls within said bulk container and a first opening in said liner top disposed generally coaxially with said filler opening,a seal between said top container wall and said liner top around the periphery of said filler opening and said first opening for sealing off the space between said liner and said container,a second opening in said liner top spaced from said first opening,an evacuation outlet sealably attached to said liner top around the periphery of said second opening for evacuating said space through said second opening, anda cap removably and sealably received in said outlet.