Spring biased electromagnetically controlled tension control
US4462557A · kind A · utility
4Cited by
32References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1982 |
| Grant date | Jul 31, 1984 |
| Priority date | — |
| Expiry date | Oct 18, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An electromagnetic disc type tension control in which a spring-like member is located between the electromagnetic coil and the lower tension disc to urge the lower tension disc upward towards the upper tension disc when the electromagnet is being supplied low voltage in order to encourage rotation of the tension discs to enhance the removal of finish and foreign material accumulated therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.