Cryogenic fluid level sensor
US5393736A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1992 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Nov 30, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/842
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cryogenic fluid level sensor utilizing a high temperature ceramic superconductor material driven above its level of critical current density, an exterior housing for holding the length of ceramic superconductor material, a support material disposed between the ceramic superconductor material and the exterior housing, and a resilient retention material disposed opposite the ceramic superconductor material for holding the superconductor material while allowing expansion and contraction thereof during thermal cycling. A method of producing a superconductor material having a low level of critical current density and favorable structural properties is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.