Metal sheathed heater with solid state control device
US7928342B2 · kind B2 · utility
0Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 29, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Jul 5, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A metal sheathed heater includes a solid state control device that allows the metal sheathed heater to be more efficiently operated. The control device supplies or terminates power to the heater according to certain conditions. Further, the control device uses predetermined time periods to control power to the heater. Thus, the heater is not kept on unnecessarily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.