Temperature surveillance systems
US4488269A · kind A · utility
16Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1982 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Apr 9, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K3/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A lattice array of metal sheathed mineral insulated cables each cable having a coaxial conductor comprising alternate lengths of dissimilar thermo-electric material to provide thermo-electric junctions. The junctions are in two groups of opposite polarity and those of one group are disposed at the intersections of the cables while those of the other are disposed between intersections. Localized temperature increases create differentials between groups of sensors and can be located by the co-ordinates of the lattice array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.