Method of manufacture of packing containers and packing containers manufactured in accordance with the method
US4379014A · kind A · utility
9Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1980 |
| Grant date | Apr 5, 1983 |
| Priority date | — |
| Expiry date | Oct 15, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for the manufacture of packing containers. The container body of the packing container is manufactured by spiral winding of a monoaxially molecular-oriented polyester film. The polyester film is spirally wound onto a mandrel to form a tube with the edge zones of successive turns of the strip overlapping in a continuous joint. The material is sealed within the edge zones by means of surface fusion. The invention also relates to a packing container manufactured in accordance with the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.