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7498548 |
Microwave heating system and method for removing volatiles from adsorbent materials
A heating apparatus for removing volatiles from a saturated adsorbent is provided. The heating apparatus can include a vessel including a first end and a second end. The vessel can be adapted to...
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7405382 |
System for microwave enhanced chemistry
According to the present invention, a microwave generator includes a variable voltage provided from a first transformer to a second transformer having a secondary winding split into a filament...
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7388179 |
Microwave radiating applicator with reduced sensitivity to surrounding media
A microwave energy applicator radiating uniformly all around the applicator that maintains high efficiency Voltage Standing Wave Ratio (V.S.W.R.) for surrounding media of dielectric constants...
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7332697 |
Photonic bandgap reflector-suppressor
A computer-based design methodology for photonic bandgap devices that permits determination of both the upper and lower bandgap edges in either a one-dimensional or two-dimensional photonic...
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7208710 |
Uniform microwave heating method and apparatus
A method and apparatus for creating uniform heating of an microwave absorptive target. A circularly polarized waveguide mode is created that promotes uniform heating of the microwave absorptive...
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7122772 |
Microwave resonator and method of operating microwave resonator
In an even numbered polygonal microwave resonator wherein a high mode microwave mode is formed and in the resonator volume a homogeneous field distribution is established for the thermal processing...
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7091457 |
Meta-surface waveguide for uniform microwave heating
A method and apparatus for creating uniform heating of an microwave absorptive target. A microwave housing has a longitudinal axis and propagates a waveguide mode at an operating frequency. The...
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7034266 |
Tunable microwave apparatus
Disclosed is a method and apparatus for tuning a microwave apparatus. The chamber volume of the microwave apparatus can be changed by moving a flexible portion of a flexible wall while a perimeter...
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7022954 |
Microwave cavity resonator for heating printing substance and/or toner
Heating a printing substance and/or toner, in an electrophotographic printer, with a standing microwave formed by at least one cavity resonator, with the printed matter being caused to move through...
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6960747 |
Microwave applicator system
A microwave applicator for heating loads being a waveguide transition between the rectangular TE 10 and TE 20 modes comprising a TE 10 mode section and a TE 20 mode section. The location of the...
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6933482 |
Microwave heating apparatus
Microwave heating apparatus comprising an elongated dielectric microwave applicator with an axial TM type mode, said dielectric applicator is provided with a load chamber for a load to be heated,...
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6906297 |
Method and device for microwave-heating prepared meals sealed in trays
Trays placed in an autoclave are coupled with microwaves from microwave generators and move back and forth as they are processed to ensure even heating. The generators are placed at the side of the...
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6888114 |
Microwave heating method
In order to reduce reflected waves and improve heating matching, a microwave heating apparatus is equipped with at least one cone-shaped, bell-shaped, pyramid-shaped or similarly shaped waveguide,...
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6884979 |
Method and apparatus for uniform heating in a microwave oven
A microwave oven and a method for heating a load which is placed therein. According to the invention a predetermined mode in the cavity of a microwave oven is fed by means of an associated feeding...
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6831259 |
Apparatus for the heating of pressed stock in the manufacture of boards of material
An apparatus for the heating of pressed stock in the manufacture of boards of material or in the manufacture of veneer panels. The apparatus includes a microwave preheating device having rod...
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6797929 |
Cylindrical reactor with an extended focal region
An elliptical exposure chamber has an extended focal region. A plurality of cylindrical reactors ( 25 ) form the extended focal region. Reducing the size of the opening ( 58 ) to each reactor ( 25...
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6781102 |
Microwave feed system for a cooking appliance having a toroidal-shaped waveguide
A microwave delivery system for a cooking appliance having a cooking chamber includes a toroidal-shaped waveguide, a magnetron, a tubular feed member interconnecting the magnetron with the...
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6740858 |
Microwave heating applicator for heating a moving fluid
A microwave applicator for heating a moving fluid includes a heating chamber having a fluid inlet and a fluid outlet and through which the fluid to be heated flows. The applicator also includes a...
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6693266 |
Microwave heating apparatus and method of heating objects
In order to reduce reflected waves and improve heating matching, a microwave heating apparatus is equipped with at least one cone-shaped, bell-shaped, pyramid-shaped or similarly shaped waveguide,...
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6630653 |
Device for adjusting the distribution of microwave energy density in an applicator and use of this device
The invention relates to a device for adjusting the distribution of microwave energy density in an applicator which forms a resonator chamber and in which the radiation generated by microwave...
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6590191 |
Method and apparatus for electromagnetic exposure of planar or other materials
A source provides an electromagnetic wave that has a range of frequencies. The source sweeps the frequency of the electromagnetic wave between a cutoff frequency and double the cutoff frequency....
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6583395 |
Focusing microwave applicator
The microwave applicator for microwaves outputs from a guide ( 1 ) comprises an envelope ( 3 ) that forces microwaves to converge towards a focal point ( 16 ) by means of a complementary central...
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6469286 |
Variable-impedance unit, microwave device using the unit, and microwave heater
A compact and highly controllable impedance-varying-unit, a microwave device using the same unit, and a high-frequency-heating appliance using the same unit are provided. The impedance varying unit...
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6437303 |
Method and furnace for microwave sintering of nuclear fuel
A method and a furnace are provided for microwave sintering of nuclear fuel. A stationary wave is generated in an antenna cavity and used to extract microwaves through slots into a resonance...
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6396037 |
Dielectric heating device
The invention provides a dielectric heating device. The device includes a plurality of electrically conductive side walls which are electrically interconnected in use and arranged in series to...
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6365885 |
Microwave processing in pure H fields and pure E fields
Embodiments include a process including providing a microwave radiation source and a processing chamber. The process includes generating a region of pure magnetic field from the microwave radiation...
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6316759 |
Microwave heating apparatus for gas chromatographic columns
A microwave heating apparatus is used for heating a chromatographic column assembly containing a microwave absorbing material. The microwave heating apparatus includes an antenna transmitting a...
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6274858 |
Bends in a compact circularly polarized microwave feed
A feed that provides circularly polarized microwave energy such as for energizing a microwave oven cavity. The feed includes a transformer to match a linearly polarized rectangular waveguide to a...
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6207941 |
Method and apparatus for rapid drying of coated materials with close capture of vapors
A method and apparatus for the removing solvents from coated materials while capturing evaporated vapors in a confined space and maintaining non-explosive conditions within the space. Microwave...
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6153868 |
Microwave application device, particularly for baking products on a metal carrier
A device for applying microwaves particularly for cooking products on a metallic support, includes at least one microwave generator (G) and a metallic waveguide, particularly of rectangular cross...
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6121595 |
Applicator to provide uniform electric and magnetic fields over a large area and for continuous processing
A microwave applicator that provides a substantially uniform microwave field distribution over a large area, includes an elongated chamber, preferably operating in the length independent mode. A...
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6114677 |
Microwave heating apparatus having a metal plate rotatably disposed in a wave guide
A microwave heating apparatus includes a magnetron (6) mounted on a top surface of a wave guide (7). A bottom surface of wave guide (7) is inclined towards the bottom of the wave guide opening. A...
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6104018 |
Uniform bulk material processing using multimode microwave radiation
An apparatus for generating uniform heating in material contained in a cylindrical vessel is described. TE 10 -mode microwave radiation is coupled into a cylindrical microwave transition such that...
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6097018 |
Circular polarization generating system for microwave oven
A microwave oven includes a magnetron for generating electromagnetic wave energy, a waveguide for guiding and directing the electromagnetic wave energy into a cavity body defining a cooking...
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6077478 |
Microwave powered sterile access port
A device and method for elimination of contamination during transfer of materials either into or from bioreactors, food containers, or other microbially vulnerable systems. Using microwave power,...
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6072167 |
Enhanced uniformity in a length independent microwave applicator
A microwave applicator including a cylindrical elongated chamber used to process materials therein; a microwave power source capable of producing microwave power having an electric field; a...
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6057535 |
Electric cooking oven with improved energy distribution
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6054696 |
Feedback system to automatically couple microwave energy into an applicator
A microwave processing system comprising a microwave applicator and a microwave source. A microwave source generates a microwave field at an output frequency. A frequency of the microwave field in...
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6034362 |
Circularly polarized microwave energy feed
A feed that provides circularly polarized microwave energy such as for energizing a cavity in a microwave oven. The feed includes a transformer to match a linearly polarized rectangular waveguide...
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6034363 |
Uniform batch processing using microwaves
A microwave oven and microwave heating method generates microwaves within a cavity in a predetermined mode such that there is a known region of uniform microwave field. Samples placed in the region...
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6020580 |
Microwave applicator having a mechanical means for tuning
A microwave applicator includes an elongated chamber, preferably having a cylindrical shape, for processing materials therein. A waveguide, connected to the elongated chamber, couples microwave...
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5994686 |
Microwave heat-treating device with concave reflectors
The invention relates to a device for heat treating products by microwave radiation with a heating chamber to take the products in which the microwaves (16) can be coupled to a device (12) in the...
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5948194 |
In-line microwave heating of adhesives
A method of dispensing the material that is heated by microwave energy immediately before the material is dispensed. The method comprises a series of steps including conveying the material through...
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5948310 |
Microwave oven with circularly polarized microwave feed structure
A microwave oven for radiating microwaves generated from a magnetron into a cavity to heat and cook foodstuff disposed therein, the microwave oven comprising an antenna disposed between a magnetron...
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5935479 |
Microwave oven with two microwave output apertures
A waveguide of a microwave oven is provided to keep constant output and electric field distribution at a cavity regardless of food load by minimizing change in impedance of waveguides depending on...
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5932131 |
Microwave oven with different phase microwave streams
A microwave oven is disclosed in which the structure of the wave guiding tube is improved such that the variation of the impedance is minimized in spite of the variation of the load of the food,...
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5892208 |
Apparatus and method for microwave curing of resins in engineered wood products
An apparatus, system, and method, for using circular mode magnetic microwave energy to heat the interior regions of a work piece of wood fiber and glue. The microwaves are generated and transmitted...
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5834744 |
Tubular microwave applicator
An assembly for applying microwave irradiation to a load having a generally circular cross-section. The applicator supports a dominant TM 120 mode and the load is aligned with a central axis in...
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5828040 |
Rectangular microwave heating applicator with hybrid modes
A microwave applicator of microwave reflective material having a closed first end, four side walls and, in a first embodiment, an open second end spaced apart from and facing a ground plate, the...
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5804801 |
Adhesive bonding using variable frequency microwave energy
Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing...
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