Device for transverse cutting of a web material and machine containing said device
US10744664B2 · kind B2 · utility
3Cited by
11References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2015 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Jul 31, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/4844
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The device includes a hollow cutting roller with a blade attached to the outer surface of the hollow roller. A stationary shaft is also provided, arranged inside the hollow roller and coaxial therewith. The stationary shaft is connected to a supporting structure and the hollow roller is rotatably supported onto the stationary shaft. A motor drive is provided to rotate the hollow roller around the stationary shaft. The hollow roller is supported onto the stationary shaft by at least a hydrostatic bearing arranged in an intermediate position between the ends of the stationary shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.