Horizontal form, fill and seal machine for loose fitting packages
US6986236B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2004 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | Apr 21, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B59/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A horizontal form, fill and seal machine has a hollow forming box into which a continuous film is longitudinally fed from a packaging film supply. The forming box has a top, sides and open inlet and outlet ends. A pair of guide bars extend from the outlet end of the forming box adjacent the forming box sides and extending away from the inlet end. The forming box transforms the flat packaging film into a film envelope that extends about the guide bars and has a product-receiving surface that rests on a conveyor between the guide bars. Sealing bars are provided to join the longitudinal edges of the packaging film together and to form seals across the envelope at package length intervals after each deposit of product onto the product-receiving surface. A zipper attaching mechanism applies zipper to the film upstream of the forming box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.