Apparatus for laying a mat of fibrous material
US4971540A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1988 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Dec 22, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27N3/146
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for laying a mat of fibrous material which includes an upwardly inclined belt onto which the fibrous material is fed, one or more combing roller located above the belt, a stripping roller at the upper end of the belt for removing the material from the belt and passing it into a mechanism for laying the material into a mat. The angle of inclination of the incline belt and the position of the first combing roller as such that the material can build up to reach a critical angle of repose and then slide back down. A second combing roller located upstream of the first combing roller serves to comb the material to a constant depth, and the speed of the incline belt is adjustable to determine the amount of material leaving the incline belt and thus regulate the thickness of the formed mat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.