Flat sided forming tube for a form-fill-seal machine
US5255497A · kind A · utility
70Cited by
13References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Nov 4, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B2220/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A form-fill-seal machine, for converting a continuous sheet of sealable film into bags, filling and then sealing the bags, in which the vertical forming tube is fabricated from a rectangular sheet of stainless steel material by making a plurality of equal angle and equal spaced bends in the stainless steel material and joining the ends together with a butt weld such that the vertical forming tube has a regular polygon cross section
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.