Die cut window laminating device
US4549917A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 1983 |
| Grant date | Oct 29, 1985 |
| Priority date | — |
| Expiry date | Feb 1, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1374
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A device for forming a moving web of laminated composite material having window portions therein from a moving continuous web of plastic film material and a moving continuous web of paper material. The device comprises cutter means for repeatingly cutting spaced apart perforated window patterns in the paper web and a wetting means for wetting the film web at spaced apart target areas having shapes substantially identical to the perforated window patterns. The device further comprises phasing means having both a coarse mode and a fine mode of operation for providing accurate registry of the perforated window patterns and the wetted target areas. A wetting synchronization means is also described which synchronizes the wetting means with the film target areas whereby the target areas and only the target areas are wetted by the wetting means. Means for removing a paper chad portion from the perforated window patterns subsequent to lamination is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.