Modular reciprocating heat seal jaw assembly
US7067037B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2002 |
| Grant date | Jun 27, 2006 |
| Priority date | — |
| Expiry date | Sep 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1378
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A modular reciprocating heat seal jaw assembly is disclosed for sealing reclosable fastener strips to a web of thermoplastic film and for sealing the web of thermoplastic film into a series of reclosable bags. The jaw assembly includes first and second sealing jaws and means for slidably mounting the first and second sealing jaws on a first pair of parallel shafts near the lateral ends of the first and second sealing jaws in a horizontal configuration. A mechanical system is providing for selectively effecting reciprocal movement of the first and second sealing jaws together and apart as required. A modular frame is provided for supporting the first and second sealing jaws and the first and second pairs of parallel shafts and for maintaining the lateral and vertical position of the first and second sealing jaws as they are moved toward or away from each other. The modular frame and heat seal jaw assembly may be inserted into existing form-fill-seal machine to make them more efficient and accurate. An additional feature of the invention is the use of third and fourth sealing jaws constructed and arranged for sealing the reclosable fastener strips to the back wall of a web of thermop…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.