Method and an apparatus for forming and thermosealing packaging containers
US6764576B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2001 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Sep 4, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S53/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The disclosure relates to a method and an apparatus for forming and thermosealing one end of a packaging container which is manufactured from thermosealing material. The packaging container is placed in a conveyor which brings it into contact with mechanical forming devices (22) which progressively reform the packaging container end so that a sealing fin (6) oriented in the direction of movement of the packaging container is formed. In a subsequent sealing station (12), thermoplastic material located in the sealing fin (6) is heated to sealing temperature, whereafter wall portions included in the sealing fin are mechanically urged against one another during simultaneous cooling and continued advancement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.