Vapor resistant fuel burning appliance
US7604478B2 · kind B2 · utility
4Cited by
68References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2005 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | May 17, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23M2900/11021
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for controlling a fuel-fired appliance is provided. The appliance enters a wait state in which burner operation ceases if a sensor indicates the presence of flammable vapors that are above an acceptable and/or safe vapor level. The appliance returns to a run state if the vapor level returns to an acceptable and/or safe vapor level within a period of time, but enters a lockout state if the vapor level does not return to an acceptable and/or safe vapor level within the period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.