Method to measure yarn tension
US4376368A · kind A · utility
5Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1981 |
| Grant date | Mar 15, 1983 |
| Priority date | — |
| Expiry date | Feb 23, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method to detect the tension and/or variation in the tension of a running length of yarn by measuring the frequency of vibration of the yarn. The yarn is initially vibrated by impingement thereon by a jet of air under pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.