Dual fuel vent free gas heater
US8057219B1 · kind B1 · utility
18Cited by
117References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2008 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Jun 18, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2237/08
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A dual fuel vent free gas heater having at least one gas burner with a plurality of gas outlet ports. The gas outlet ports are in flow communication with at least one pilot flame burner. At least one fuel injector feeds fuel to the burner providing for introduction of more than one fuel to the burner. Optionally, an oxygen detection system, manual control valve, linkage, and/or shut off control system may be incorporated into the dual fuel vent free heater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.