Temperature sensor
US5176451A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Jun 28, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24C3/126
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A temperature sensor for use in a heating apparatus is disclosed. The temperature sensor includes a rigid cylindrical body and upper and lower plates disposed at one end of the rigid cylindrical body. A first electrical insulator is interposed between the upper and lower plates and has a recess filled with a second electrical insulator, in which a hot junction of a thermocouple is buried. Since the respective components are just in contact with each other without any bonding therebetween, there arises no stress in the temperature sensor even at high temperatures. Furthermore, even if a short circuit occurs in the thermocouple, data indicating the short circuit is output from the temperature sensor to the control system of the heating apparatus, thereby assuring safety in the operation of the heating apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.