Package forming apparatus and method
US4423585A · kind A · utility
22Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1981 |
| Grant date | Jan 3, 1984 |
| Priority date | — |
| Expiry date | Aug 20, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B9/213
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A package forming and filling machine of the type which forms sheet material into a tube and the tube into individual packages incorporates a pair of magnetizable bars which are suspended within the tube during filling and are magnetically attracted outwardly during filling so as to maintain the tube open for the fill material. Associated driven belts engage external tube surfaces and are timed to operate in coordination with the tube sealing, stripping and severing mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.