Impingement food preparation apparatus
US4462383A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1982 |
| Grant date | Jul 31, 1984 |
| Priority date | — |
| Expiry date | Jun 9, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/918
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An oven for preparing food comprising an enclosure having a conveyor received therethrough for conveying food to be prepared through the enclosure. Positioned within the enclosure and about the conveyor portion therein are duct devices for impinging heated air against the food product, a plenum adapted to the duct devices for supplying heated air to the duct devices, and an impeller assembly for recirculating the air within the enclosure for reheating and subsequent passage to the plenum and duct devices. A heating source is provided within a heating chamber on the opposite side of the plenum from the duct devices, and control components are provided for regulating the temperature of the heat source. The impeller assembly and the plenum are unique in that air drawn from the heating chamber by the impeller assembly is axially and radially urged into the plenum for substantially uniform distribution to the duct devices communicating with the plenum. The impeller assembly and the plenum also uniquely provide for the air flow to be reversed in a very short distance. Furthermore, the structure of the impeller assembly and plenum provide at various points tapering walls, which permit air…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.