Flat top end closure for liquid containers
US4582246A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1984 |
| Grant date | Apr 15, 1986 |
| Priority date | — |
| Expiry date | Oct 29, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D85/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There is disclosed herein a flat top end closure for a liquid carrying container, which includes two oppositely disposed, overlapped outer closure panels, and two oppositely disposed, three-segment fold-in panels, one of which serves as the pour spout when opened. Each of the three-segment fold-in panels includes a substantially triangular panel portion defined by converging diagonal score lines extending from the upper edge of the tubular container body, and a pair of fold-back panels integrally connected to and folded between the substantially triangular panel portion and the respective adjacent outer closure panels. Diagonal opening-assist score lines are formed on the outer closure panels. Adhesive patterns to facilitate the opening process are formed on the outside surface of the three-segment pour spout and on the inside surfaces of the pour spout fold-back panels and the adjacent panel segments bounded by the diagonal opening-assist score lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.