Durable fine wire electrical conductor suitable for extreme environment applications
US9478327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2014 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Mar 23, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0551
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Durable fine wire electrical conductors are robust, durable, small in profile, and light weight, yet capable of operating under extreme environmental conditions. Formed of a glass, silica, sapphire or crystalline quartz fiber core with a metal coating and one or more polymer layers, a unipolar electrical conductor can have an outer diameter as small as about 300 microns or even smaller. The metal buffer coating may be deposited directly on the glass/silica fiber, or upon an intermediate layer between the glass/silica fiber and metal, consisting of carbon and/or polymer. The resulting metallized glass/silica fibers are extremely durable, can be bent through small radii and will not fatigue even from millions of iterations of flexing. Bipolar electrical conductors can include several insulated metallized glass/silica fibers residing side by side, or can be coaxial with two or more insulated metal conductive paths. An outer protective sheath of a flexible polymer material can be included.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.