Method of positioning and sealing a bag in a vacuum chamber, bag positioning apparatus, and method of manufacturing a patch bag
US11254457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2016 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Apr 21, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B57/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of positioning and sealing a bag in a vacuum chamber, includes detecting a trailing edge of a product in the bag, detecting a trailing edge of a patch adhered to the bag, controlling advancement of the bag, and closing the bag. A bag positioning apparatus includes an infrared sensing apparatus, a fluorescence sensing apparatus, and a controller. A method of manufacturing a patch bag includes adhering a first patch to film stock, detecting a position of the first patch, aligning a second patch with the first patch, and adhering the second patch to the film stock. A method of manufacturing a patch bag includes detecting an edge of a patch adhered to film stock, forming a seal across the film stock adjacent to the edge of the patch, and severing the film stock adjacent to the edge of the patch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.