Food container for microwave heating and method of substantially eliminating arching in a microwave food container
US4851631A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1986 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Oct 23, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S99/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A food container for use in a microwave oven is disclosed. The container contains a plurality of food substances, and employs a metal shield to shield at least one of the food substances from microwave radiation. Arcing and other problems associated with the use of metal shielding are avoided by proper selection of the geometry of the metal shield. The metal shield is preferably looped in a manner which provides some electrical inductance, and the ends of the metal shield are overlapped and separated by a dielectric material to provide some electrical capacitance. The geometry of the shield is selected so that the inductance and the capacitance in effect form a "tuned circuit" which minimizes problems associated with resonance and which eliminates arcing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.