Variable frequency microwave heating apparatus

Bible, Don W; Lauf, Robert J; Johnson, Arvid C; Thigpen, Larry T

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
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C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
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F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
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H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
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H05 - electric techniques not otherwise provided for
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Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

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Title: Variable frequency microwave heating apparatus

Abstract

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 selected applications. The variable frequency microwave heating apparatus (10) includes a microwave signal generator (12) and a high-power microwave amplifier (20) or a high-power microwave oscillator (14). A power supply (22) is provided for operation of the high-power microwave oscillator (14) or microwave amplifier (20). A directional coupler (24) is provided for detecting the direction and amplitude of signals incident upon and reflected from the microwave cavity (34). A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

Inventors:

Bible, Don W ^[1]; Lauf, Robert J ^[2]; Johnson, Arvid C ^[3]; Thigpen, Larry T ^[4]

Clinton, TN
Oak Ridge, TN
Lake in the Hills, IL
Angier, NC

Issue Date:: 1999-01-01

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 872562

Patent Number(s):: 5961871

Assignee:: Lockheed Martin Energy Research Corporation (Oak Ridge, TN)

Patent Classifications (CPCs):: H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

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H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING
H05B6/686 - {Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators}
H05B6/705 - {using microwave tuning}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
Y02B40/00 - Technologies aiming at improving the efficiency of home appliances

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DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: variable; frequency; microwave; heating; apparatus; 10; designed; allow; modulation; microwaves; introduced; multi-mode; cavity; 34; testing; selected; applications; signal; generator; 12; high-power; amplifier; 20; oscillator; 14; power; supply; 22; provided; operation; directional; coupler; 24; detecting; direction; amplitude; signals; incident; reflected; meter; 30; measuring; delivered; furnace; 32; 26; detects; magnitude; dissipated; load; 28; high-power microwave; microwaves introduced; allow modulation; power load; directional coupler; microwave signal; frequency microwave; variable frequency; power supply; microwave cavity; signal generator; microwave heating; power meter; power delivered; microwave amplifier; reflected power; heating apparatus; microwave furnace; power microwave; wave signal; selected applications; microwave oscillator; multi-mode microwave; -mode microwave; wave cavity; /219/

Citation Formats


                    Bible, Don W, Lauf, Robert J, Johnson, Arvid C, and Thigpen, Larry T. Variable frequency microwave heating apparatus.  United States: N. p., 1999. 
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                    Bible, Don W, Lauf, Robert J, Johnson, Arvid C, & Thigpen, Larry T. Variable frequency microwave heating apparatus.  United States.

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                    Bible, Don W, Lauf, Robert J, Johnson, Arvid C, and Thigpen, Larry T. Fri .  
        "Variable frequency microwave heating apparatus".  United States.  https://www.osti.gov/servlets/purl/872562.

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@article{osti_872562,

  title        = {Variable frequency microwave heating apparatus},

  author       = {Bible, Don W and Lauf, Robert J and Johnson, Arvid C and Thigpen, Larry T},

  abstractNote = {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 selected applications. The variable frequency microwave heating apparatus (10) includes a microwave signal generator (12) and a high-power microwave amplifier (20) or a high-power microwave oscillator (14). A power supply (22) is provided for operation of the high-power microwave oscillator (14) or microwave amplifier (20). A directional coupler (24) is provided for detecting the direction and amplitude of signals incident upon and reflected from the microwave cavity (34). A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1999},

  month        = {1}

}

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Works referenced in this record:

Accelerated imidization reactions using microwave radiation
journal, July 1992

Lewis, D. A.; Summers, J. D.; Ward, T. C.
Journal of Polymer Science Part A: Polymer Chemistry, Vol. 30, Issue 8
https://doi.org/10.1002/pola.1992.080300817

Frequency Agile Sources for Microwave Ovens
journal, January 1979

Mackay B., A.; Tinga, W. R.; Voss, W. A. G.
Journal of Microwave Power, Vol. 14, Issue 1
https://doi.org/10.1080/16070658.1979.11689130

Use of Sheath Heiix Slow-wave Structure as an Applicator in Microwave Heating Systems
journal, January 1981

El-Sayed, El-Deek; Abdel-Hamld, Tarik
Journal of Microwave Power, Vol. 16, Issue 3
https://doi.org/10.1080/16070658.1981.11689251

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Similar Records

Title: Variable frequency microwave heating apparatus

Abstract

Citation Formats

Accelerated imidization reactions using microwave radiation journal, July 1992

Frequency Agile Sources for Microwave Ovens journal, January 1979

Use of Sheath Heiix Slow-wave Structure as an Applicator in Microwave Heating Systems journal, January 1981

Accelerated imidization reactions using microwave radiation
journal, July 1992

Frequency Agile Sources for Microwave Ovens
journal, January 1979

Use of Sheath Heiix Slow-wave Structure as an Applicator in Microwave Heating Systems
journal, January 1981