Temperature responsive switch
US4325047A · kind A · utility
5Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1981 |
| Grant date | Apr 13, 1982 |
| Priority date | — |
| Expiry date | Mar 27, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H37/54
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A temperature responsive switch is provided which comprises a pair of bimetal discs having different temperature-deformation characteristics, a pair of fixed electrical contacts and a movable electrical contact. The movable contact engages one of the fixed contacts in response to a deformation of the pair of bimetal discs or remain free from engagement with either fixed contact. The engagement of the movable contact with one or the other of the fixed contacts and the absence of its engagement with either fixed contact constitute three conditionswhich permits a detection of a temperature of at least three different regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.