End closure structure for a container
US4557398A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1984 |
| Grant date | Dec 10, 1985 |
| Priority date | — |
| Expiry date | Aug 17, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2517/5083
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.