Electric cooking oven with infrared gas broiler
US5909533A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B40/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A cooking oven having an electric heating element in the bottom for baking, warming and high temperature-self cleaning, and an infrared gas broiler in the top of the oven. The infrared gas broiler is supplied with a fuel gas/air mixture from a venturi tube that uses the stream of fuel gas to draw clean air into the oven from outside the oven. A flue duct is provided in the top rear of the oven for the discharge of the combusted gases but no other opening is provided, such as for secondary air that is normally required for a gas oven. The venturi tube assembly creates a fuel gas/air mixture that contains 100% of the air necessary for full combustion of that gas and a positive pressure for distributing the gas/air mixture through ceramic radiants for combustion to heat the radiants to a temperature for producing the infrared light waves. The positive pressure created within the oven by the gas/air mixture and combustion causes a continual discharge of the hot gases from the oven through a flue duct without a draft normally created by the introduction of secondary air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.