Method for treating a material using radiofrequency waves
US4777336A · kind A · utility
64Cited by
9References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1987 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Apr 22, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2206/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method (1) for determining and controlling patterns of change of heating as a function of time for controlled heating of similar materials B, Ba or Bb or (2) for determining changing dielectric constants of a material B, Ba or Bb during heating is described. The materials are heated in cavity (10 or 10a) using radiofrequency waves with internal tuning using a probe (19 or 19a) and sliding shorting plates (12 or 12a). In particular single mode or controlled multimode heating of the materials to allow programmed processing is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.