Temperature operated control system, control device therefor, and methods of making the same
US5168545A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 1992 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Mar 9, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H37/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A temperature operated control system, a temperature operated control device therefor and methods of making the same are provided, the temperature operated control device comprising a support, an electrical reed switch unit carried by the support, the reed switch unit comprising a reed switch and a temperature controlled fixed magnetic unit for causing the reed switch to be in a first operating condition thereof when the temperature sensed by the magnetic unit is at or below a first temperature setting and for causing the reed switch to be in a second operating condition thereof when the temperature sensed by the magnetic unit is at or above a second temperature setting, and a selector unit movably carried by the support and being operatively associated with the reed switch unit to adjust the temperature settings thereof within a certain range of temperature settings as the selector unit is moved relative to the reed switch unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.