Attrition mill and method of fibrous web formation
US3940831A · kind A · utility
0Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1974 |
| Grant date | Mar 2, 1976 |
| Priority date | — |
| Expiry date | Dec 13, 1994 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G25/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus and method for forming a fibrous batt of controlled thickness and uniformity with fibers flowing from the discs of an attrition mill. The fibers are directed from the outlet of the mill in an air stream in a path of decreasing radius of curvature so that the fibers accelerate toward a collecting screen until they reach a forming chamber communicating the path with the screen. The acceleration of the fibers in the path prevents fiber contact and minimizes fiber contact with walls of the equipment thereby avoiding fiber agglomeration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.