Machine for thermoforming an imprevious film inside a cardboard container for packaging a foodstuff to be preserved and for closing the container
US4862671A · kind A · utility
6Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Feb 3, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2120/406
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The machine comprises a thermoforming box (116) which receives the container (126) and which is itself fitted into a cutting box (100), a heating die (148) mounted in vertically slideable manner above the said boxes and capable of squeezing a thermoforming film (44) or a closing film on the upper edge of the thermoforming box and of thermoforming the film (44) inside the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.