Furnace and method with sensor
US4362580A · kind A · utility
32Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1981 |
| Grant date | Dec 7, 1982 |
| Priority date | — |
| Expiry date | Apr 6, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2019/0012
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Oxygen sensor comprising solid oxygen-ion-conducting electrolyte with a platinum group metal film electrode contacts and monitors nonoxidizing or reducing gas atmosphere in a metal heat treatment (gas carburizing) furnace after a getter of the same platinum group metal as in the film electrode removes platinum group metal contaminants from such atmosphere before it contacts the electrode. Getter is held in a thin-walled, multi-passaged honeycomb body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.