Bag spreaders
US4697403A · kind A · utility
23Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1986 |
| Grant date | Oct 6, 1987 |
| Priority date | — |
| Expiry date | Jan 16, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B9/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for flattening the horizontal seal area of a form-fill-seal pouch or bag comprising a pair of spreaders adapted to be located in the interior of the film pouch to stretch the film in the horizontal seal area to eliminate wrinkles in the film to insure an air-tight seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.