Press-on closure with peelable end panel

Details Press-on closure with peelable end panel Press-on closure with peelable end panel

B - Operations, Transporting

65

D

B65D 17/34 (2006.01) B65D 43/02 (2006.01) B65D 77/20 (2006.01) B65D 79/00 (2006.01)

Patent

CA 2126682

A press-on closure (10) for a tubular container (12). The closure includes a molded plastic frame (14) having a ledge (28) on which an end panel (16) is seated and to which the end panel is peelably secured. The end panel has a free outer peripheral edge unbonded to the frame. The resultant closed container is subject to retorting with the result that heretofore the end panel could axially outwardly deform and possibly initiate internal peeling. To prevent this peeling, the frame is provided with a thin flexible integral flange (36) forming a continuation of the ledge on which the end panel is seated. The end panel is also peelably bonded to the flange and the flange deforms or deflects with the end panel. The frame has a press fit onto the container, which is preferably in the form of a metal can, which at the end thereof to be closed by the closure is provided with a radially outwardly directed curl (48). The curl terminates in a raw edge (54) and is so shaped that when it is seated within a groove in the underside of the frame, the raw edge is embedded in a skirt portion of the frame to permanently and sealingly lock the curl within the frame.

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