Patent ID: 6753517
Filing Date: 2004-06-22
Classification: B01J,H01P,H05B

Abstract:
An instrument for microwave-assisted chemical processes that avoids tuning discrepancies that otherwise result based upon the materials being heated, said instrument comprising:a source of microwave radiation; a waveguide in communication with said source; a first portion of said waveguide forming a cylindrical annulus; a second portion of said waveguide forming a three-dimensional rectangle, with said second portion joining said first portion perpendicularly to a tangent defined by the circumference of said cylindrical annular waveguide; a cylindrical cavity immediately surrounded by said annular waveguide; said cavity including a circular cavity floor and an attenuator opposite said cavity floor; and at least 5 slotted openings in the inner circumference of said cylindrical annulus of said waveguide that provide microwave communication between said waveguide and said cavity.