Laser cutoff stacker assembly
US7367931B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2004 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Jul 21, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B70/8131
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention contemplates a machine and method for performing the laser sealing and laser cutting of flexible material into segments, such as a polymeric web in which the segments will ultimately be individual bags. The machine includes a generally cylindrical drum having openings on an exterior surface. A laser produces a laser beam that contacts the flexible material while the flexible material is being held on the drum. The drum is preferably comprised of drum sections that can be independently moved in the radial direction. The machine includes a cam system causing the drum sections to be sequentially moved in the radial direction. Typically, this radial movement is for the purpose of releasing the individual segments of the flexible material that have been cut by the laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.