Twin roll laminated packaging process
US4723393A · kind A · utility
34Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1986 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Jul 25, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B11/58
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Process and apparatus for an orbital stretch wrapper to form two superimposed layers of opposite pitch on items or bundles. Shrinkable film is drawn off two separate supply rolls under tension simultaneously in opposing rotational directions. The rolls are placed successively along the length of a conveyor belt separated by at least one width of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.