Radiant wall/hot air impingement oven
US5942142A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1996 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Apr 26, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/782
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An oven for cooking foods, and especially for browning foods, has heated, radiant walls. Heat may be supplied by a gas burner flame in a plenum behind the walls, with products of combustion thus being isolated from the food in the oven chamber. In one embodiment food products are continuously conveyed through the oven chamber and, depending on oven temperature, are either cooked or simply browned in the oven by the radiant wall heat. Fats and other materials rendered from the food products, if not fully incinerated in the oven chamber, may be transferred along with exhaust air from the oven chamber to a separate combustion chamber, for incineration, the heat from which is used to contribute to heat requirements for the plenum. Steam or other inert gas is introduced to the oven chamber to minimize oxidation and prevent flame, and the steam can be produced by heat exchange with exhaust plenum gases. An alternative wall heating system uses electric resistance heat elements inside a thin ceramic wall. In one preferred embodiment of a conveyorized oven the oven chamber has two stages, a browning stage and a cooking stage, with atmosphere gases constantly moved toward the browning stage …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.