Multi-layer insulation for deep-cooled cables
US3959549A · kind A · utility
5Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Aug 1, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/681
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multi-layer insulation for deep-cooled cables utilizing insulating foils having a dielectric loss factor less than 5.times.10.sup..sup.-5 in which a layer of a spun bonded paper of high density polyethylene fibers is placed between each two layers of insulating foil thereby providing sufficient elasticity even when the cable is cooled to a very low temperature to equalize expansion differences occurring in the cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.