Method and apparatus for guiding a fastener in a bag making machine
US6494018B1 · kind B1 · utility
8Cited by
129References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Sep 4, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/0596
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for guiding a fastener in a bag making machine includes a stationary support, an elongated internal guide, and a slitting mechanism. The elongated internal guide is mounted to the support and positioned within an enclosed space defined by the fastener. The fastener is moved downstream with the internal guide within the enclosed space. The fastener is slit upstream from the support. While the fastener is guided, a sealer may seal the fastener to a moving web of plastic film along a seal adjacent to the internal guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.