GB958392A - Improvements in or relating to high-frequency ovens - Google Patents

Improvements in or relating to high-frequency ovens

Info

Publication number
GB958392A
GB958392A GB6866/61A GB686661A GB958392A GB 958392 A GB958392 A GB 958392A GB 6866/61 A GB6866/61 A GB 6866/61A GB 686661 A GB686661 A GB 686661A GB 958392 A GB958392 A GB 958392A
Authority
GB
United Kingdom
Prior art keywords
feb
channel
magnetron
heating units
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6866/61A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB958392A publication Critical patent/GB958392A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/70—Feed lines
    • H05B6/705—Feed lines using microwave tuning
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H05B6/68—Circuits for monitoring or control
    • H05B6/688—Circuits for monitoring or control for thawing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/70—Feed lines
    • H05B6/701—Feed lines using microwave applicators
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/78—Arrangements for continuous movement of material

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Abstract

958,392. Microwave ovens. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 24,1961 [Feb. 29, 1960], No. 6866/61. Addition to 873,082. Heading H5H. A radio-frequency oven comprises a plurality of heating units as described in the parent Specification spaced along a conveyer belt. Frozen meals on plates 7 are passed by a belt 2 through a channel 25 made of conductive material. Five heating units each having a magnetron generator 8 and a voltage supply set 9 direct energy through slots in the channel 25 to troughs 28 partly filled with radiation absorbing material. Each magnetron 8 feeds energy through a coaxial conductor 15, provided with a matching device 16, to a linear radiator 22 arranged in conjunction with two reflector rods 23 in a parabolic waveguide 18. One unit directs radiation in an opposite direction to the others, thus providing bilateral heating. A common supervisory and control panel 10 is provided, and vapours are removed by a compressed air duct 30 communicating with the waveguides 18 through gaps 31.
GB6866/61A 1959-05-01 1961-02-24 Improvements in or relating to high-frequency ovens Expired GB958392A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL238818 1959-05-01
NL248916 1960-02-29

Publications (1)

Publication Number Publication Date
GB958392A true GB958392A (en) 1964-05-21

Family

ID=26641685

Family Applications (2)

Application Number Title Priority Date Filing Date
GB14940/60A Expired GB873082A (en) 1959-05-01 1960-04-28 Improvements in or relating to high-frequency ovens
GB6866/61A Expired GB958392A (en) 1959-05-01 1961-02-24 Improvements in or relating to high-frequency ovens

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB14940/60A Expired GB873082A (en) 1959-05-01 1960-04-28 Improvements in or relating to high-frequency ovens

Country Status (5)

Country Link
US (1) US3102181A (en)
CH (2) CH379022A (en)
DE (2) DE1095967B (en)
GB (2) GB873082A (en)
NL (3) NL248916A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404620A (en) * 1966-08-22 1968-10-08 Microtherm Ltd Preparation of food products

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE620304A (en) * 1961-07-17
US3197601A (en) * 1962-01-26 1965-07-27 Uarco Inc Heat treating apparatus
US3271552A (en) * 1963-02-01 1966-09-06 Litton Prec Products Inc Microwave heating apparatus
US3242304A (en) * 1963-07-22 1966-03-22 Philips Corp High frequency heating apparatus
GB1099357A (en) * 1964-06-02 1968-01-17 Ass Elect Ind Improvements relating to the heating of organic substances by electrical energy at microwave frequencies
US3571551A (en) * 1968-04-03 1971-03-23 Furukawa Electric Co Ltd High frequency heating apparatus
GB1278062A (en) * 1968-08-30 1972-06-14 Dunlop Holdings Ltd Improvements in or relating to apparatus for heating articles
US4431888A (en) * 1978-12-21 1984-02-14 Amana Refrigeration, Inc. Microwave oven with improved feed structure
SE441640B (en) * 1980-01-03 1985-10-21 Stiftelsen Inst Mikrovags PROCEDURE AND DEVICE FOR HEATING BY MICROVAGS ENERGY
FR2759239B1 (en) * 1997-01-31 1999-03-05 Commissariat Energie Atomique MICROWAVE APPLICATOR, AND ITS APPLICATION TO THE SURFACE SCARIFICATION OF CONTAMINATED CONCRETE
WO2001043508A1 (en) * 1999-12-07 2001-06-14 Industrial Microwave Systems, Inc. A cylindrical reactor with an extended focal region
DE10157601B4 (en) * 2001-11-26 2011-06-01 Dieffenbacher Gmbh + Co. Kg Device for heating pressed material in the manufacture of material plates
JP4527963B2 (en) * 2003-11-04 2010-08-18 日本碍子株式会社 Microwave drying method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2259318A (en) * 1937-04-24 1941-10-14 Westinghouse Electric & Mfg Co Ultra high frequency for therapeutic purposes
NL67699C (en) * 1942-07-08
US2478241A (en) * 1945-07-09 1949-08-09 Chu Lan Jen Flat beam antenna
US2500752A (en) * 1946-06-01 1950-03-14 Gen Electric High-frequency dielectric heating in a resonant chamber
US2627571A (en) * 1948-11-02 1953-02-03 Gen Electric Choke joint high-frequency heater
US2560218A (en) * 1950-04-22 1951-07-10 Rca Corp Submarine antenna structure
US3027442A (en) * 1960-02-29 1962-03-27 Philips Corp High-frequency furnaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404620A (en) * 1966-08-22 1968-10-08 Microtherm Ltd Preparation of food products

Also Published As

Publication number Publication date
CH379022A (en) 1964-06-30
NL238818A (en)
NL113091C (en)
CH396252A (en) 1965-07-31
GB873082A (en) 1961-07-19
DE1095967B (en) 1960-12-29
DE1148674B (en) 1963-05-16
US3102181A (en) 1963-08-27
NL248916A (en)

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