Manufacturing method for thermoplastic container with integral lifting ring
US4713207A · kind A · utility
17Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1986 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Jul 7, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7154
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A plastic container with an integral handling ring is formed in a mold having a pair of side sections movable toward each other and a pair of co-planar end sections movable toward each other and toward said side sections, by placing molten extrudate in a mold between the side and end sections, so that a handling ring can be formed and compression joined to the container at the same time the container is being formed by blow-molding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.