Apparatus and method to extract material from a running length of fiber
US4771616A · kind A · utility
2Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1986 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Feb 28, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/62
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention is an apparatus and method of extracting a material from a continuous running length of fiber comprising continuously moving the fiber through a conduit while simultaneously flowing a solvent for the material through the conduit with the conduit having a length and cross sectional area sufficient to facilitate extraction of the desired amount of the material. The flow is preferred to be countercurrent to the movement of the fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.