Method and apparatus for producing a continuous even strand of fibers
US4030635A · kind A · utility
15Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1973 |
| Grant date | Jun 21, 1977 |
| Priority date | — |
| Expiry date | Dec 4, 1993 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G23/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The deviations in measuring the density of the fiber strand caused by manufacturing tolerances in the take-off rolls are monitored by integrating the deviations in densities from a preset value over periodic intervals in a control device. The integrator is controlled by periodic impulse signals and is used to adjust the transporting air stream so as to regulate the pressure drop to achieve an even strand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.