Conveyor oven
US4951648A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1989 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Mar 23, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA21B1/48
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Infrared (IR) strip heaters are juxtaposed with convection heaters for simultaneous, independently controlled, combined radiant/convective heating in a conveyor oven. Apertured plates with portions transmissive to IR radiation are interposed between a lower combined heating unit and the cooking path. The IR heaters are preferably gas burners with porous, ceramic or metallic elements, the burners on opposite sides of the cooking path being independently controllable to vary the heat transfer rate to opposite food surfaces. Symmetrical placement of the IR heaters in opposed pairs facilitates use of the conveyor oven as a half oven. An auxiliary burner exhausts directly into the convection air and is cycled on and off to maintain a set temperature during normal operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.