Method for bundle-packaging batches of products, heating device and facility with such a device
US12263978B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2019 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Mar 18, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D71/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method for bundle-packaging batches of products, wherein products are moved in a longitudinal running direction, grouped into batches and wrapped with a film of heat-shrinkable film. Each wrapped batch is heated to form a contraction of each sheet around said batch. Heating of a batch is performed by the circulation of at least one heated air stream and by the expulsion of said stream toward the interior of the enclosure of an oven provided, successively, with first and second sections; the sheet is cooled; during heating, along at least a part of the first section, a first air stream is shaped discontinuously and expelled toward the interior of said enclosure. The method consists, during heating, along said second section, in shaping a second stream as an air knife and expelling said air knife toward said sheet to be smoothed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.