Method for treating a material using radiofrequency waves
April 22, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3461401 3715555 Applicator for applying microwaves Multimodal resonant cavity for very high frequency heating Controlled heating microwave ovens Microwave heating apparatus Ion generating apparatus and method for the use thereof Thermographic transfer recording medium Microwave-heating apparatus having means for measuring reflection coefficient under low power operation Patent #: 4616120 InventorApplicationNo. 07/041291 filed on 04/22/1987US Classes:219/696, With tuning219/750With tuning or particular modesExaminersPrimary: Leung, Philip H.Attorney, Agent or FirmInternational ClassesG05D 23/20 (20060101)G05D 23/26 (20060101) H05B 6/80 (20060101) G01R 27/26 (20060101) AbstractA 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.Other References
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