Independent drive for a roller cavity suction apparatus
US4344552A · kind A · utility
2Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1980 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | Apr 16, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H23/24
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to the driving of rollers of roller cavity suction apparatus for conveying or braking material webs whereby the motors for driving at least one of the rollers receive the power output from the pressure drop between the front and reverse side of the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.