Transfer suction roll for transfer of a material web
US9121440B2 · kind B2 · utility
0Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2012 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Oct 31, 2033 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F3/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The subject of this invention is a transfer suction roll (21) for transferring a material web with a perforated suction roll shell (22) that is pivot-mounted in roller bearings (25) and a suction box (24) mounted inside the transfer suction roll (21). The suction box (24) defines a suction zone (37) on the perforated suction roll shell (22) by means of seals (32). According to the invention, a suction hood (26) is arranged on the outer circumference of the transfer suction roll (21) through which air can be sucked out of the suction box (24) through the perforated suction roll shell (22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.