Control of energy use in a furnace
US4891004A · kind A · utility
24Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1988 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Mar 7, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2233/10
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A microprocessor control determines, in the course of initiating a heating cycle, whether the blower is operating in the continuous mode, and if it is, the control prompts the blower to be turned off prior to the ignitor being turned on. In this way, the blower and ignitor are never on at the same time and the instantaneous total current draw is limited to thereby reduce the occurrence of burned out fuses or circuit breaker trips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.