Detector for carbon monoxide concentration of a gas
US4421720A · kind A · utility
8Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1981 |
| Grant date | Dec 20, 1983 |
| Priority date | — |
| Expiry date | May 28, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/205831
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for the detection of carbon monoxide concentration of a gas. The apparatus comprises a base from which a pair of arms extend, a resistance layer disposed on each arm serving both to measure the difference in temperature between the arms and to heat a catalyst layer; a protective layer on the resistance layers to prevent electrical shorts caused by deposit of conductive particles in the gas to be detected; and a catalyst layer on one and only one of the arms in contact with the protective layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.