Method of forming a continuous fiber layer of constant weight per unit length and apparatus for implementing the method
US4153977A · kind A · utility
4Cited by
2References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1978 |
| Grant date | May 15, 1979 |
| Priority date | — |
| Expiry date | Feb 23, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/736
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of, and apparatus for, forming a fiber layer of substantially constant weight per unit length, there being provided supply means for supplying a fiber and air mixture onto a moving, fiber-separating, perforated surface. A suction opening is arranged beneath and extends over a certain zone or region of such perforated surface. The suction opening can be moved forward and backward with respect to the direction of transport of the fiber and air mixture by the perforated surface as a function of a measuring value which is representative of the thickness of the fiber layer deposited upon such perforated surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.