Method of operation and device for even heating by means of microwaves
US4956530A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1989 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | Sep 8, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B40/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for even and rapid heating, pasteurization or sterilization of food by microwave energy. The products to be heated are passed through an oblong microwave treatment chamber on a continuous conveyor belt. The beginning and end of a container on the conveyor is registered before or during entry into the treatment chamber, and this information is transmitted to a computer. On the basis of this information, the computer switches on and off the input microwave energy of the individual input channels when the containers or packages pass under the input channels, the switch-on and switch-off points being set in relation to the container or package length and the axial aperture center of the input channels. The microwave energy to be input into the product is preset in the computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.