Zipper tracking in form, fill and seal package machines
US5042224A · kind A · utility
44Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 1990 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Feb 1, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S493/923
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A zipper guide tracking device and method whereby zipper profiles on package making film running over a forming shoulder about a forming and filling tube of a form, fill and seal machine are tracked in grooved tracking structure which may comprise either or both of a grooved tracking roller and a grooved tracking bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.