Method and apparatus for dry-forming a fibrous product
US9777415B2 · kind B2 · utility
0Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Apr 28, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G25/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention regards a forming box for use in dry-forming a mat of fibrous material, said forming box comprising a housing with an open bottom for providing direct access of the fibers onto an underlying forming wire and a vacuum box underneath said forming wire, at least one inlet for supplying fiber material into the inside of the housing, a number of spike rollers are provided in at least one row in the housing between the fiber inlet and the housing bottom, wherein a screen is provided adjacent said spike rollers, said screen comprising a plurality of slats, wherein each slat is rotatable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.