Yarn false twist texturing process and apparatus
US5146739A · kind A · utility
9Cited by
13References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Jan 24, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/0266
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yarn false twist texturing process and apparatus wherein the tension of the advancing yarn is monitored. The resulting signal is processed through a time filter to produce a time averaged signal, and the time averaged signal is compared with a set point signal to produce an adjusting signal which acts to control the false twisting unit so as to provide a substantially constant tension. The adjusting signal is also used to detect deficiencies of the false twisting process which disturb the uniformity of the texturing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.