B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 25/10 (2006.01)
Patent
CA 2114606
ABSTRACT A sealing device for sealing the surface of contents of a container comprises a disc-like member having a central portion and a flexible perimeter and having a centrally located upstanding hollow handle having a purge valve at the upper end thereof. The purge valve has a closed position for preventing egress of air upwardly through said hollow handle and an open position to permit free passage of air therethrough. The disc-like member is contoured to correspond with the shape of the interior plan of the container.
Gowling Lafleur Henderson Llp
Kral Dean C.
LandOfFree
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