Gas furnace with improved ignition
US4887959A · kind A · utility
13Cited by
11References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1988 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Nov 17, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q7/26
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A furnace employing a plurality of spaced burners, a carryover tube passing adjacent the burners, a hot surface igniter at one end of the carryover tube, a flame sensor at the other end of the carryover tube and an ignition control for controlling actuation of the hot surface igniter and the flow of combustible gas to the carryover tube and main burners, the ignition control being responsive to the flame sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.