Pilot light control for an appliance
US10670302B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2014 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Jul 22, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H9/28
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A device for igniting a pilot light for a heating appliance or for re-igniting the pilot. The device may monitor a thermopile at the pilot to determine if the pilot is lit and, if not, attempt to relight it. If the device fails to relight the pilot, it may continue attempting to relight the pilot until the stored energy is nearly depleted. Before the stored energy is depleted, the device may send a message indicating a failure to relight. The last of stored energy may alert a homeowner with an alarm that the appliance control has shut down and the pilot could not be relit. If the amount of energy stored drops below a specified threshold and the device successfully lights the pilot, it may restore the control to normal operation, and replenish the stored energy. The device may do a standing pilot or an intermittent pilot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.