Other

Raytheon Company

Maytag Corporation

Amana Company, L.p.

Acp Ltd.

Sonique Surgical Systems, Inc.

John Moses Osepchuk

Rex E Fritts

Thomas L Miller

R Kemp Massengill

Richard J McClure

Edward R Cook

Tulio T Parisi

Thomas Miller

Shawn M Garringer

Glen R Breuer

A microwave intensification system includes a base frame having a plurality of support members, a microwave transparent, central vessel, and at least one dielectric unit positioned within the central vessel. A cooking surface is formed by covering the dielectric unit with a protective covering. In operation, a food item is placed within a processing container and positioned on the cooking surface over the dielectric unit. The processing container is sized such that an overlap exists between the container and the dielectric unit in order to balance the exposure of the food item to a microwave energy field. With this arrangement, the food item can rapidly undergo a cooking process in a manner wherein central and edge portions of the food item are exposed to a uniform cooking process thereby increasing the quality of the final product.

Microwave intensification system for rapid, uniform processing of food items

The present invention is related a method and system for irradiating a target location or material with high-amplitude narrow pulses of electromagnetic (EM) energy at a periodic or quasi-periodic rate. The method and system comprises generating at least three electromagnetic signals simultaneously in space from at least three sources, each signal having the same repetition rate and a different frequency, and directing each signal to at least one predetermined target, and adjusting the phase of each signal, so that its peak field occurs at the same instant as the occurrence of the peak fields of all the signals at the target.

Delivery of quasi-periodic pulses of EM energy utilizing the principle of beating-wave amplification

A conveyorized microwave oven incorporates a shielding system mounted within an oven cavity of the microwave oven. The shielding system is provided to prevent select portions of a food item traveling through the microwave oven from overheating relative to the remainder of the food item. The present invention is particularly adapted for use in connection with the tempering, cooking or thawing of parallelepiped or rectangular-shaped food items and includes a frame structure fixedly mounted within and traversing substantially the entire length of the oven cavity, with the frame structure having a generally rectangular cross-section defined by both microwave impermeable portions and microwave transmissive portions on each side.

Shielding system for protecting select portions of a food product during processing in a conveyorized microwave oven

A microwave apparatus includes a coaxial feed connected to a microwave waveguide and extended into a rotating antenna applicator in a microwave cavity, wherein a gap between the ceiling of the microwave cavity and the top of the rotating antenna applicator as well as between the coaxial feed and the rotating antenna applicator is present to facilitate the rotation of the antenna applicator. The presence of these gaps permit radial leakage, uncontrolled excitation of modes and occasional arcing. An annular knob is provided proximate the coaxial feed and attached to the top of the rotating antenna applicator to suppress radial leakage, uncontrolled excitations and arcing in the microwave cavity.

Choke knob for coaxial microwave feed

A microwave oven comprises a cabinet and a door attached to the cabinet to form a food processing chamber. The door has a screen, an absorbing film, and a frame. The screen reflects microwave energy away from the absorbing film, the screen has a plurality of screen lines and a plurality of screen openings defined by the plurality of screen lines, and the screen has a screen period. The absorbing film absorbs microwave energy passing through the screen. The frame supports the screen and the absorbing film in order to form a window through the door and to maintain leakage of microwave energy through the door from the food processing chamber below a predetermined level. The frame supports the screen and the absorbing film so that the screen and the absorbing film are separated by a distance which is as least as great as the screen period, and the screen and the absorbing film are electrically attached to the frame.

High visibility microwave oven door with screen and microwave absorbing

A method and apparatus for heating fatty tissue to facilitate liposuction removal of fat and, by additional heating, to enable denaturing of the tissue structure. The apparatus uses microwave energy, applied by a cannula to the fatty tissue, as a means to facilitate fat removal. The microwave energy is delivered at a frequency range chosen to optimize energy coupling directly to the fatty tissue, while insuring the attenuation of the radiation level to a safe level in a relatively short distance. The cannula is provided with internal channels to simultaneously provide fluid and remove the mixture of fluid and fatty tissue. Since the microwave frequency is selected to insure direct coupling with the fat tissue, it is not necessary to introduce water to promote coupling, and if water is introduced for cooling or irrigation purposes, no salts need to be added to the water for purposes of microwave energy coupling.

Microwave-assisted liposuction apparatus

A microwave power source for a microwave oven in which a microwave magnetron is supplied simultaneously with filament heater power and with anode voltage through an inductive reactance power supply and has end shields with peripheral depressions to suppress end shield secondary emission oscillations during warm-up of the filament which can rapidly collapse to produce rapid shutoff of anode current and, consequently, undesirably high voltage spikes across the magnetron.

Microwave heating apparatus

A microwave oven having a rotating radiator supported on a conductor extending through an aperture in a wall of the oven. The radiator is made up of a plurality of separate radiating elements supplied with microwave energy from said conductor via separate strip lines. A conductor of each of the strip lines rotates with the radiator and with respect to a ground plane which is common to all the strip lines and is formed by the wall of the oven containing the aperture. The radiating elements simultaneously radiate separate patterns into the oven.

Microwave oven having rotating conductive radiators

A microwave tube having a heated cathode with a rare earth magnet positioned inside the evacuated envelope of the tube and at least partially shielded from thermal radiation from the cathode and/or anode so that the magnet may be operated at elevated temperatures while protected from environment such as oxygen in the air to prevent degradation of the magnetic properties of the magnet at temperatures up to 500.degree. C. during processing of the tube or up to 250.degree. C. during operation of the tube with thermal shielding from the hot cathode preventing any surface of the magnet from exceeding such temperatures.

Growing community of inventors

Concord, MA, United States of America

John Moses Osepchuk