Method of detecting a threshold temperature
US7947200B2 · kind B2 · utility
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15References
20Claims
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Key dates
| Filing date | Apr 17, 2008 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Apr 17, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A temperature switch comprises a material (14) which melts and concomitantly undergoes a change in an electrical characteristic at a predetermined temperature. The temperature switch also includes at least two electrical contacts (10, 12) for detecting the change in the electrical characteristic. The material (14) comprises an organic cation and an anion and is preferably an ionic liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.