04557398 is referenced by 21 patents and cites 67 patents.

The present invention is an end closure structure for a container having a flexible central member (6) with an outwardly dished center section and at least one opening structure (18) in the central member (6), a removable thin flexible closure member (12) disposed over the opening structure (18) which is in a first sealing relationship (32) with a portion of the opening structure (18) and a second sealing relationship (34) with the top surface of the central member (6), an upwardly extending flange member (8) circumferentially disposed from the peripheral edge of the central member (6), and a downwardly extending sealing skirt (10) circumferentially disposed from a top edge of the flange member (8).

Title
End closure structure for a container
Application Number
6/642054
Publication Number
4557398
Application Date
August 17, 1984
Publication Date
December 10, 1985
Inventor
Peter Rychiger
Steffisburg
CH
Erick Guevara
Huntingdon Valley
PA, US
Thomas P Hambleton
Pine Bush
NY, US
Agent
Richard J Ancel
Assignee
International Paper Company
NY, US
IPC
B65D 17/34
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