Controller for fuel fired heating appliance
US7020543B1 · kind B1 · utility
13Cited by
2References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2004 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Oct 12, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2231/22
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A controller for a fuel-fired appliance comprising a microprocessor that is able to detect an interruption in power, and immediately store errors and historical diagnostic information in a non-volatile memory before the microprocessor powers down. Upon restoration of power, the microprocessor would flash or display the most recent error codes on the controller's diagnostic LED or display. The microprocessor is also able to detect an open fuse condition, and flash or display the fuse error on the display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.