High A.C.-D.C. yarn tension control
US4446691A · kind A · utility
1Cited by
21References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1982 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Nov 10, 2002 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/0266
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A direct current electromagnetic disc type tension control which periodically has alternating current superimposed on the direct current circuit to allow the electromagnet to vibrate the tension discs in order to break the contact between the tension discs and between the tension discs and the electromagnet to lower the resistance to rotation of the discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.