Seal jaw modules for reclose bag modification to vertical form, fill, and seal packaging system
US6665999B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1999 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Jun 26, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B70/8133
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A self-aligning zipper seal module adapted for quick change-out in a sealing carriage. The zipper seal module allows for a quick modification of a sealing carriage in order to accommodate different package dimensions. The module is stored and is installed in a closed and aligned position by use of an aligning handle. The module is easily installed or removed with a single tool and is designed to reduce the potential for operator injury by isolation from heat sources and by virtue of the aligning handle. The various seal facings of the module are oriented to equalize pressure on the facings during sealing and increase stripping efficiency. The zipper seal facings incorporate a novel insert design, thereby eliminating the need for stocking different sized facings to accommodate various bag widths. A return module of similar design is used to quickly return the sealing carriage to a standard configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.