Process and apparatus for producing a strip of corrugated cardboard
US4589944A · kind A · utility
31Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Nov 19, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31F1/285
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for producing a strip (4) of corrugated cardboard by gluing one or more sheets (8, 10) of single-face corrugated cardboard and a sheet (6) of covering paper. At least the corrugations of the upper sheet (10) are heated by means of an infra-red radiation panel (40), after the glue has been deposited on them in the gluer (1) and before the sheets come in contact with one another in the double-face machine (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.