ES322768A1 - Electronic oven - Google Patents

Electronic oven

Info

Publication number
ES322768A1
ES322768A1 ES0322768A ES322768A ES322768A1 ES 322768 A1 ES322768 A1 ES 322768A1 ES 0322768 A ES0322768 A ES 0322768A ES 322768 A ES322768 A ES 322768A ES 322768 A1 ES322768 A1 ES 322768A1
Authority
ES
Spain
Prior art keywords
oven
waveguide
magnetron
microwave
wall
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
ES0322768A
Other languages
Spanish (es)
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.)
Microtherm Ltd
Original Assignee
Microtherm 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 Microtherm Ltd filed Critical Microtherm Ltd
Publication of ES322768A1 publication Critical patent/ES322768A1/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
    • H05B6/6408—Supports or covers specially adapted for use in microwave heating apparatus
    • H05B6/6411—Supports or covers specially adapted for use in microwave heating apparatus the supports being rotated

Landscapes

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

Abstract

A microwave source, e.g. a magnetron 32, is matched to waveguides 41, 42 feeding a microwave oven 19 by means of a progressive variation in the impedance of the waveguide 40 in the neighbourhood of the T-junction with the co-axial feeder 38. This may take the form of arcuate inserts disposed against the narrow sides of the waveguide 40 on either side of the antenna 39 whereby the broad dimension of the waveguide is reduced to the diameter of the outer conductor 38 (Figs. 2, 3, not shown). The oven is fed with generally ellipticallypolarized microwave energy by means of mutually-orthogonal oblique slots 43, 44 covered with insulative tape 60. The magnetron 32 is cooled and the oven ventilated by means of a fan 35. Apertures 63 are provided in the wall of housing 10 and further apertures (not shown) in the wall 22 of the oven to allow circulation of air. A closure 26 for the oven comprises a layer 30 of dissipative material. The closure carries an arm, (65 Fig. 8, not shown) which short-circuits a pair of power switch contacts (68) outside the oven when the oven is closed. Food to be heated is supported upon a revolving table 55 of low-loss dielectric material.
ES0322768A 1965-02-09 1966-02-08 Electronic oven Expired ES322768A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5573/65A GB1126876A (en) 1965-02-09 1965-02-09 Improvements in and relating to electronic heating devices

Publications (1)

Publication Number Publication Date
ES322768A1 true ES322768A1 (en) 1966-11-16

Family

ID=9798661

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0322768A Expired ES322768A1 (en) 1965-02-09 1966-02-08 Electronic oven

Country Status (8)

Country Link
US (1) US3492454A (en)
BE (1) BE676266A (en)
CH (1) CH455081A (en)
DE (1) DE1491965B1 (en)
ES (1) ES322768A1 (en)
GB (1) GB1126876A (en)
NL (1) NL6601620A (en)
SE (1) SE333590B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518951Y2 (en) * 1974-11-13 1980-05-02
US4121078A (en) * 1975-04-30 1978-10-17 Matsushita Electric Industrial Co., Ltd. Microwave heating apparatus
JPS52121838A (en) * 1976-04-06 1977-10-13 Matsushita Electric Ind Co Ltd High frequency heating device
US4149056A (en) * 1976-05-13 1979-04-10 Sharp Kabushiki Kaisha Microwave oven with food temperature-sensing means
US4140888A (en) * 1976-12-01 1979-02-20 Litton Systems, Inc. Dual-feed microwave oven
US4314127A (en) * 1977-11-02 1982-02-02 Raytheon Company Microwave oven with rotating multiport radiator
US4361744A (en) * 1981-01-12 1982-11-30 Despatch Industries, Inc. Microwave process unit
US4458126A (en) * 1982-03-30 1984-07-03 General Electric Company Microwave oven with dual feed excitation system
EP0136453B2 (en) * 1983-08-10 1992-08-26 Snowdrift Corp. N.V. Method and device for the microwave heating of objects
KR100186479B1 (en) * 1996-07-11 1999-03-20 구자홍 Waveguide structure of microwave oven
US10412988B2 (en) * 2013-03-11 2019-09-17 Jacobsen Innovations, Inc. Apparatus and system for roasting coffee beans
US10959575B2 (en) 2013-03-11 2021-03-30 Jacobsen Innovations, Inc. Apparatus and method for roasting coffee beans
CA3027499A1 (en) * 2016-06-13 2017-12-21 Jacobsen Innovations, Inc. Apparatus and method for roasting coffee beans

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR948355A (en) * 1942-12-31 1949-07-29 Western Electric Co Coupling device usable in wave transmission systems
US2659054A (en) * 1946-04-09 1953-11-10 Alford Andrew Transformer for connecting a wave guide to a coaxial line
US2895828A (en) * 1958-02-06 1959-07-21 Gen Electric Electronic heating methods and apparatus
US2993973A (en) * 1959-04-06 1961-07-25 Westinghouse Electric Corp Microwave oven apparatus
US3188441A (en) * 1960-03-04 1965-06-08 Husqvarna Vapenfabriks Ab Safety device for microwave ovens
US3104304A (en) * 1960-09-12 1963-09-17 Gen Electric Electronic cooking appliance
US3377562A (en) * 1961-04-27 1968-04-09 Gen Electric Magnetron device having a cooling arrangement and capacitively coupled output circuit
US3182166A (en) * 1961-09-04 1965-05-04 Miwag Mikrowellen Ag Microwave ovens
GB977777A (en) * 1962-02-02 1964-12-16 Lyons & Co Ltd J Improvements in or relating to radio frequency ovens
US3373259A (en) * 1965-03-26 1968-03-12 Lyons & Co Ltd J Electronic oven

Also Published As

Publication number Publication date
SE333590B (en) 1971-03-22
CH455081A (en) 1968-04-30
NL6601620A (en) 1966-08-10
GB1126876A (en) 1968-09-11
US3492454A (en) 1970-01-27
BE676266A (en) 1966-06-16
DE1491965B1 (en) 1970-09-10

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