Packing container
US4126238A · kind A · utility
13Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1977 |
| Grant date | Nov 21, 1978 |
| Priority date | — |
| Expiry date | Jan 24, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1328
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to packing containers formed from shrinkable plastics material of the type in which a plastics blank is shrunk onto a mold to produce a form having a bottleneck shape. The portion so given bottleneck shape has longitudinal and relatively parallel surface pleats. The plastics material so used has a relatively thick base layer of shrinkable foamed plastics material and an outer layer of homogeneous, relatively non-shrinkable plastics material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.