Microwave oven, in particular for rapid heating to high temperature
US5420401A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1994 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Apr 25, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A microwave oven, in particular for rapid heating to high temperature, is disclosed. A cylindrical metal housing is open at one end and has a cylindrical side wall, into which a waveguide opens, the waveguide being coupled to a microwave generator. A first outer layer of a thermally insulative, microwave-transparent material and a second inner layer thereof are provided in a coaxial configuration. A metal sleeve provided with plural coupling slots is interposed between the outer and inner layers. A muff of a microwave-absorbing material is received within a central opening of the inner layer and constitutes a heating enclosure. A metal plate fitted with an access door is provided for closing the open end of the housing. An infrared pyrometer or a thermocouple may be provided for measuring temperatures in the heating enclosure. The heating enclosure may have a vent for evacuating fumes and an orifice for injecting gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.