Feeding of fibrous material to carding machines
US4085977A · kind A · utility
6Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 1977 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Sep 1, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G23/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of, and apparatus for, feeding fibrous material to the chute from which a carding machine is fed, wherein fibrous material is entrained in a flow of moving air downstream of the flow generation point, and the flow of air and entrained material is led along a duct to the chute. Desirably, the air flow is not more than 300 cubic feet per minute and is generated by a positive displacement blower. Additionally, a pivotable valve flap is provided wherein the pivoting means are shielded from the movement of material in the ducts to prevent the formation of trailings on said pivot means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.