Method and apparatus for producing bags interconnected at their open ends
US5226858A · kind A · utility
27Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1992 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Feb 27, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2155/003
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for producing bags interconnected at their open ends by forming transverse seals across a flattened longitudinal tube of film material and utilizing a cutting die to cut a transverse weakened line across the tube intermediate the transverse seals and to cut a pair of handle openings, one on each side of the transverse weakened line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.