Seal and cut method and apparatus
US8539741B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2010 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Jul 9, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B9/207
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for forming a bag includes moving a film at a first velocity, forming a seal on the moving film with a sealing device moving at the first velocity, moving the film and the sealing device relative to each other and thereby moving the sealing device out of alignment with the seal, aligning a film separation device with the seal on the moving film, moving the film separation device with the moving film, and separating the film across the seal with the film separation device. A sealing and cutting device includes a carriage moveable along a longitudinal axis and upper and lower grippers coupled to the carriage. A sealing device and a cutting device are positioned between the upper and lower grippers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.