Single facer with small intermediate corrugating roll
US5628865A · kind A · utility
17Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1996 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Mar 26, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1025
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The labyrinth path in the corrugating nip of a single facer is substantially reduced by utilizing a small diameter intermediate corrugating roll captured between a pair of larger diameter conventional corrugating rolls. The two large diameter rolls capture the smaller roll and prevent bending thereof under corrugating loads. The corrugator may be operated at high speeds without the adverse increase in labyrinth path and web tension characteristic of large diameter corrugating rolls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.