Apparatus for producing a non-woven web from particles and/or fibers
US4352649A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1980 |
| Grant date | Oct 5, 1982 |
| Priority date | — |
| Expiry date | Mar 20, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/736
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A system for production of non-woven sheet material by the dry forming method, comprising a moving carrier web to receive a uniformly distributed layer of loose fibres and a fibre distributor unit located above and across the moving web. The distributor unit includes a closed conduit system for conducting a flow of air fluidized fibre material, this closed flow across the web being maintained by blowing action. The conduits located overhead the web are provided with outlet openings constituted by narrow slots or screen wall portion, and compressed air nozzles are arranged so as to cause fibres circulating in said flow crosswise to be moved crosswise in the flow outwardly through the outlet openings, whereby a high distributor capacity is obtained by simple means by forcing fibre material out of the outlet openings in a positive manner as distinguished from outlet by general suction from outside the outlet openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.