Method and device for thermal activation of packaging sleeves
US10843832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2015 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Jun 19, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B50/741
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and device for thermal activation of tube-shaped packaging sleeves made of cardboard/plastic composite material, wherein a hot gas is applied to the tube-shaped packaging sleeve by a heating device in order to produce the base or the head of the packaging. To achieve even heating for the activation of the contact surfaces with production using simple construction, wherein the energy required for the activation process is used as completely as possible for the heating of the surfaces to be activated, the heating device is placed into effective contact with the surfaces to be activated by the heating device being moved inside the tube-shaped packaging sleeves for activation. The heating device has at least one nozzle element with an outlet opening, the external shape of which nozzle element corresponds to the internal shape of the end of the tube-shaped packaging sleeve to be activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.