Edge-bonding of sheet material
US4544093A · kind A · utility
11Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1983 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Sep 27, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S229/92
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
When a packaging container is formed by sealing an area of sheet material to the edge of another area of sheet material, the L-joint or T-joint so formed is sometimes liable to rupture when subjected to blows or strain. According to this invention that danger is reduced or eliminated by moulding a zone (4) of an end closure panel (3) abutting on the container wall edge to which it is jointed so that it forms a flange resting against and bonded to the face of said wall (1). The flange may be provided with a lip (6) projecting from a short length of the edge of said closure panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.