Cem Corporation

Dennis Palmer Manchester

Edward Earl King

William Edward Jennings

Wyatt P Hargett

David A Barclay

Edwin D Neas

Zairani Zakaria

A microwave processing system is disclosed. The system is particularly useful for concurrently controlling a plurality of chemical reactions from a single microwave source. The system comprises a source that produces electromagnetic radiation in the microwave range; a waveguide in communication with the source and into which the source propagates microwave radiation; a resonator in communication with the waveguide; and an adjustable dynamic moderating device between the waveguide and the resonator for moderating the wave energy passing from the waveguide to the resonator without substantially changing the propagated mode in the waveguide.

Microwave apparatus for controlling power levels in individual multiple

A microwave heating system which is especially useful for rapidly, uniformly and positively sterlizing biological media, such as broths and gels used as incubation or growth media for bacteria, includes a source of microwave radiation, a microwave chamber, a container or a plurality of containers in the chamber, and a mixer for mixing the contents of the container or containers during heating. The mixer is at least partially external to the container and is capable of operating when the container is positively sealed to prevent contamination of the contents, and the mixer is preferably a combination of an external magnet and a mixing element which is at least in part of magnetic material and is moved by changes in the magnetic field set up by the magnet, as the container and contained mixing element are moved with respect to the magnet, as on an oscillating turntable. Other systems for mixing the material in the container are also within the invention, although they are not as satisfactory as that previously described, and such other systems include mechanical systems, such as solenoid activated cores or extensions thereof for pushing vertically against a turntable and thereby moving it out of its normal horizontal plane, cams for accomplishing the same purpose, devices for causing the containers to swing, in pendulum-like motion, as they are rotated, and ultrasonic devices. The apparatus may be used for various other heating operations and even for mixings, without heatings.

Microwave heating system

Growing community of inventors

Matthews, NC, United States of America

Dennis Palmer Manchester