Apparatus to measure yarn tension
US4445322A · kind A · utility
7Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1982 |
| Grant date | May 1, 1984 |
| Priority date | — |
| Expiry date | Nov 17, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus to cause a running length of yarn to vibrate at its harmonic frequency and to electronically measure the harmonic frequency thereof to provide a signal which can be employed to maintain and/or correct the parameters of the system to maintain a desired tension in the yarn being run.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.