Packaging case and packaging material therefor
US6443357B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Apr 28, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D65/42
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An object is to secure a sufficient area for bonding a spout open/close member (51). A packaging container has a pair of seal portions; at least five side-surface panel portions (27) for forming a circumferential wall; an end-surface panel portion (35) disposed between the seal portion and the side-surface panel portions (27) and adapted to form a polygonal end-surface portion in cooperation with an intermediate portion (15a) of the seal portion; and flap portions (31) projected, together with end portions (15b) of the seal portion, from the end-surface panel portion (35), each of the flap portions (31) being bent toward a specified panel portion (27a) among the side-surface panel portions (27) and being welded to the specified panel portion (27a). In this case, since the flap portions (31) are welded to the specified panel portions (27a), and the end-surface portion is thus made substantially flat, a sufficiently large flat area can be secured on the end-surface portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.