Process and apparatus for separating laminated sheets
US4526634A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1984 |
| Grant date | Jul 2, 1985 |
| Priority date | — |
| Expiry date | Apr 5, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1961
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Process for separating individual laminated sheets from a continuous web which comprises individual sheets located end to end with end portions overlapping and a continuous film laminated with each sheet and connecting the sheets together, the process including feeding the web in succession to a sensing station, a tear initiation station and a sheet separation station, the sensing station serving to sense the presence of successive overlapping end portions and thereafter actuating the tear initiation station to rupture the film at one edge thereof in the vicinity of a sensed overlapping portion and thereafter actuate the sheet separation station to propagate said rupture and thereby separate the terminal sheet from the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.