Encoding means and method for a bag making apparatus
US4632667A · kind A · utility
16Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1984 |
| Grant date | Dec 30, 1986 |
| Priority date | — |
| Expiry date | Nov 27, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2160/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system for identifying the origin of a plastic bag made from web stock on a machine having a plurality of bag making stations wherein each station has a vacuum port for holding the web stock to the station during the bag making operation and each vacuum port has an identifying characteristic which is impressed in the web stock to identify the work station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.