Packaging machinery
US6581360B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1999 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Sep 21, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B51/306
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A vertical form, fill and seal (VFFS) packaging machine comprising a pair of sealing jaws (12; 100; 200, 202; 302, 304) mounted directly or indirectly on parallel shafts (10; 102; 206, 208; 300) for rotation in opposite directions on opposite sides of the path of the packaging material (36; 118; 204, 308) so that the jaws engage the packaging material simultaneously on opposite sides to form successive horizontal seals, and stripping means comprising, in association with the sealing jaw on each side of the path of the packaging material, a pair of stripper carriers (22; 54; 66; 116; 222, 224, 226, 228; 314) mounted for rotation around the corresponding shaft at or near the respective ends thereof, or about an axis parallel to the shaft, a horizontal stripper bar (18B; 40A; 50A; 62; 110; 234; 310) mounted at its respective ends on the two stripper carriers and arranged to be movable with respect to the stripper carriers so that the stripper bar can engage the packaging film along a predetermined vertical stripping path along which, in cooperation with a similar stripper bar associated with the sealing jaw on the other side of the packaging material, it acts to displace downwards any…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.