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7432484 |
Current control for high-frequency heating apparatus
The invention relates to a high frequency heating apparatus and provides a tracking method of a frequency modulation in order to prevent an extension of the harmonic current component of an...
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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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7339146 |
Low cost microwave over components manufactured from conductively doped resin-based materials
Microwave oven components are formed of a conductively doped resin-based material. The conductively doped resin-based material comprises micron conductive powder(s), conductive fiber(s), or a...
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7235929 |
Magnetron
A magnetron 10 is equipped with a helical filament 39 , as an element of a cathode assembly, arranged on a central axis of an anode cylindrical body 13 . Assuming that a resistance value of the...
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7220949 |
Capacitor of magnetron
Disclosed herein is a capacitor for a magnetron. The capacitor has dielectric members, which have a converging angle of less than 180° defined between lines extending from both sides of each...
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7122773 |
Magnetron for microwave ovens and method of forming same
A magnetron for microwave ovens includes an anode cylinder, a plurality of plate-shaped vanes radially arranged along an inside surface of the anode cylinder, one or more strap rings to...
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7067779 |
Magnetron arrangement
A magnetron arrangement has a coaxial output terminating in a probe which launches energy from the magnetron along a rectangular waveguide. The coaxial output is arranged in an endfire...
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7067782 |
Magnetron
A magnetron that includes a choke coil which is connected at one end to a cathode terminal and at the other end to a capacitor to form an LC circuit. The choke coil is made up of a first core type...
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7064305 |
Apparatus and method for controlling output of magnetron of microwave oven
An apparatus and method for controlling an output of a magnetron of a microwave oven is provided. The method includes setting an initial input current to generate an output higher than rated...
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7053556 |
Magnetron with a specific dimension reducing unnecessary radiation
In a magnetron 41 , when a radius of a flat portion 45 b of a pole piece 45 is Rp, a radius of the inner circumference of a large-diameter equalizing ring 51 is Rs 2 , Rp≧Rs 2 , a radius...
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6985042 |
Magnetron
The object to the present invention is to provide a magnetron which can reduce spurious oscillation such as the π−1 mode which presents a problem particularly in magnetrons and can reduce...
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6921890 |
Low-noise, crossed-field devices such as a microwave magnetron having an azimuthally-varying axial magnetic field and microwave oven utilizing same
Cost-effective, simple, low-noise, crossed-field devices such as a microwave magnetron, a microwave oven utilizing same, and crossed-field amplifier utilize an azimuthally varying, axial magnetic...
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6906301 |
Mounting structures for a high-frequency heating apparatus
A high-frequency heating apparatus includes a magnetron ( 1 ), a magnetron holding plate ( 2 ), a waveguide ( 3 ), a heating chamber ( 4 ), and screws ( 5 ), and the magnetron ( 1 ) is attached to...
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6888117 |
Combination hood and microwave oven
A combination hood and microwave oven, in which the construction of a drive circuit relating to an exhaust device is simplified, reducing its manufacturing cost, and in which the number of user's...
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6867405 |
Magnetron for microwave ovens
A magnetron includes a positive polar cylinder, a plurality of vanes, a filament, upper and lower shields, and upper and lower pole pieces. The vanes are disposed in the positive polar cylinder to...
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6858824 |
Microwave heating system to provide radiation heat and domestic hot water
A microwave heating system is provided which uses a heat conductive medium. The heat conductive medium is heated in a heater. The heater includes a shell which forms an enclosure. The enclosure has...
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6787744 |
Microwave device for de-icing, or keeping hollow bodies free from ice and method for the operation of the device
A microwave device for de-icing and keeping areas of hollow body structures free from ice keeps atmospherically exposed leading edges and adjacent areas free of ice by means of a coolant circuit....
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6717122 |
Wall-mounted microwave oven and structure for removing magnetron
A wall-mounted microwave oven includes a body partitioned into a cooking cavity and a machine room, a magnetron detachably installed in the machine room, and a control panel detachably mounted on...
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6649892 |
Microwave oven system
In a microwave oven system comprising at least one magnetron of a given operating frequency and a mains unit for the at least one magnetron, the at least one magnetron of a given operating...
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6642490 |
Compact millimeterwave system for De-icing and for preventing the formation of ice on the outer surfaces of shell structures exposed to meterological influences
In a millimeter wave de-icing system for the front areas of exposed shell structures, at least one independently operable millimeter wave generator is disposed in each shell structure closely...
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6610969 |
Compact microwave system for de-icing and for preventing icing of the outer surfaces of hollow or shell structures which are exposed to meterological influences
In a microwave de-icing system for the front areas of exposed shell structures, at least one independently operable microwave generator is disposed in each shell structure closely adjacent the...
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6172322 |
Annealing an amorphous film using microwave energy
A system and method for annealing a film on a substrate in a processing chamber, including a microwave generator disposed to provide microwaves to an area within the interior of the chamber. The...
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6169277 |
Apparatus for the selective heating of foods disposed on a tray using a gyrotron for microwave heating of the foods
In an apparatus for the selective heating of foods disposed on a serving tray to serving temperature by means of a microwave oven having a gyrotron as a heat source, individual guide means are...
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6114678 |
Microwave oven abnormal state detecting device and method of detecting abnormal state of microwave oven
A device of detecting an abnormal state of a microwave oven having relays, a high voltage transformer, and a magnetron, including a voltage sensing part connected between the high voltage...
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5998773 |
Liquid heating in interaction region of microwave generator
A microwave heater (22) which uses electromagnetic radiation for heating liquid flowing from a liquid source to a liquid receiver. The microwave heater (22) includes a microwave generator having an...
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5961871 |
Variable frequency microwave heating apparatus
A variable frequency microwave heating apparatus (10) designed to allow modulation of the frequency of the microwaves introduced into a multi-mode microwave cavity (34) for testing or other...
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5914067 |
Microwave oven equipped with a structurally simple microwave generating apparatus
A microwave oven includes a microwave generating apparatus having a cathode, a first grid for controlling the flow of electrons from the cathode, the first grid having holes for converting...
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5883368 |
Microwave frequency energy generating apparatus provided with a voltage converting means
An apparatus for generating a microwave frequency energy includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from the cathode, a choke...
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5883369 |
Structurally simple apparatus for generating a microwave frequency energy
An apparatus for generating a microwave frequency energy includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from the cathode, a choke...
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5883367 |
Microwave oven equipped with a structurally simple apparatus for generating a microwave frequency energy
A microwave oven includes a cooking chamber, a waveguide, and an apparatus for generating a microwave frequency energy. The apparatus includes a cathode for emitting electrons, a first grid for...
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5850074 |
Microwave oven equipped with a microwave generating apparatus designed to reduce secondary electron emission
A microwave oven includes a microwave generating apparatus having a cathode, a first grid for controlling the flow of electrons from the cathode. The first grid has holes for converting electrons...
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5841114 |
Microwave oven equipped with a microwave output controlling apparatus
A microwave oven includes a microwave generating apparatus having a cathode, a first grid for controlling the flow of electrons from the cathode, the first grid having holes for converting...
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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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5721470 |
Microwave generator apparatus comprising controller for automatically adjusting filament power of a magnetron
In a microwave generator apparatus including a magnetron having a filament and an anode and generating a microwave, a filament power source supplies a filament power to the filament of the...
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5686007 |
Microwave oven magnetron with slit filament terminal
This invention relates to a magnetron of a microwave oven is disclosed including a lead for supporting a filament, and a filament terminal for electrically connecting the lead and a choke coil,...
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5676873 |
Microwave oven and magnetron with cold cathode
There is provided a magnetron comprising a cold cathode having an electron emitting member which is formed linearly or as a plane on a substrate to emit electrons a subdivided anode disposed...
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5604405 |
Magnetron with feed-through capacitor having a dielectric constant effecting a decrease in acoustic noise
A magnetron provided with a filter circuit for suppressing leaking of the electromagnetic wave of the magnetron. First and second choke coils have their respective first ends serially connected to...
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5600531 |
Capacitor for magnetron of microwave oven
A capacitor for the magnetron of a microwave oven is disclosed, in which the structure is relatively simple, so that the material cost would be saved, and that the productivity would be improved....
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5575943 |
Microwave oven with a single thermostat to sense temperature of both the magnetron and the microwave cavity
This invention discloses an improved safety device for microwave oven having one thermostat commonly preventing possible overheat of the cavity and magnetron of the microwave oven. The thermostat...
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5571439 |
Magnetron variable power supply with moding prevention
A power supply for a magnetron varies a power output level and prevents moding of the magnetron. To provide a variable power output, a microprocessor senses an anode current and voltage of the...
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5558800 |
Microwave power radiator for microwave heating applications
The output matching networks normally included in a microwave power transistor package as well as the transistor combining network therefor are eliminated for heating applications, e.g. microwave...
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5548105 |
Universal magnetron assembly for microwave oven
A magnetron assembly that is adapted to be mounted on a wall of a waveguide in a microwave oven includes a yoke enclosure in which is disposed a magnetron tube. The yoke enclosure is generally...
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5541391 |
Microwave oven employing a klyston
A microwave oven has a cooking chamber and a microwave generator for supplying microwaves to the cooking chamber. The microwave generator is in the form of a klystron which produces a plurality of...
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5455405 |
Noise shielding apparatus for magnetron of microwave oven
A noise shielding apparatus for the magnetron of a microwave oven is disclosed, in which the structure is relatively simple, so that the material cost would be saved, and that the productivity...
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5438182 |
Choke coil apparatus for an electromagnetic range
A choke coil apparatus for an electromagnetic range comprises an improved ferrite core, so as to prevent an increasing in temperature of the choke coil. The ferrite core in a multiangular bar-shape...
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5378876 |
Fail safe microwave oven
The invention relates to a microwave oven which neither generates hot spots nor destroys a magnetron by shutting microwaves when there is no load to be heated. This microwave oven is constructed so...
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5350905 |
Magnetron for a microwave oven
In a magnetron for a microwave oven comprising a plurality of vanes as an anode and an antenna feeder mounted to the vanes, an antenna feeder fixing device comprising a plurality of radially spaced...
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5321222 |
Variable frequency microwave furnace system
A variable frequency microwave furnace system (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34) for testing or other selected applications....
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5179264 |
Solid state microwave powered material and plasma processing systems
A solid state microwave generator is utilized as an excitation source for material/ plasma processes. The invention provides very close precise control of the solid state device's power levels to...
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5149929 |
Microwave oven with inverter controlled power source
A microwave oven with an invertor control power source produces a microwave by the use of the magnetron in relation to the high frequency power generated by the invertor control power source. The...
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