Rectangular multi-substrate vertical form, fill, and seal bag and method and apparatus for forming and filling same
US9371143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2012 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Jul 29, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2160/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A VFFS bag is provided that is dimensionally stable, aesthetically pleasing, and renders items stored in it highly visible. The bag includes first and second gusseted side walls that span a depth of the bag and front and rear walls that span a width of the bag. The bag has a substantially rectangular closed bottom end. In order to maximize the viewabilty of stored items and reduce the amount of film material in the bag, the bag has a depth to width ratio of at least 1.5:1 at the bottom of the bag. Stability is enhanced by sizing the gussets such that they closely approach but do not overlap a line longitudinally bisecting the bag. A VFFS machine and its method of operation also are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.