GB1478495A - Microwave oven - Google Patents

Microwave oven

Info

Publication number
GB1478495A
GB1478495A GB3577174A GB3577174A GB1478495A GB 1478495 A GB1478495 A GB 1478495A GB 3577174 A GB3577174 A GB 3577174A GB 3577174 A GB3577174 A GB 3577174A GB 1478495 A GB1478495 A GB 1478495A
Authority
GB
United Kingdom
Prior art keywords
waveguide
coupled
microwave oven
oven
apertures
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
GB3577174A
Inventor
B U Imberg
K H Carlsson
G G Orke
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 Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1478495A publication Critical patent/GB1478495A/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
    • H05B6/707—Feed lines using waveguides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
    • 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
    • H05B6/72—Radiators or antennas
    • H05B6/725—Rotatable antennas

Landscapes

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

Abstract

1478495 Microwave oven PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 Aug 1974 [17 Aug 1973] 35771/74 Heading H5H A magnetron 17 is coupled to a microwave oven by means of a waveguide 20 of increasing width a short-circuited at its wider end 23, where it is coupled to the oven by a number of coupling apertures, e.g. apertures 24, 25. As shown, the waveguide overlies the upper wall 13 of the oven. At its narrow end the waveguide 20 is coupled to a standard waveguide feeder 19 co-planar with the waveguide 20 or (as shown) at right-angles thereto. The apertures 24, 25 may be asymmetrically arranged with respect to the axis of the waveguide. Each aperture may contain a mode stirrer with four oblique blades. One of these may be stationary and the other may rotate.
GB3577174A 1973-08-17 1974-08-14 Microwave oven Expired GB1478495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7311238A SE375680B (en) 1973-08-17 1973-08-17

Publications (1)

Publication Number Publication Date
GB1478495A true GB1478495A (en) 1977-06-29

Family

ID=20318263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3577174A Expired GB1478495A (en) 1973-08-17 1974-08-14 Microwave oven

Country Status (7)

Country Link
JP (1) JPS5046470A (en)
CA (1) CA1011821A (en)
DE (1) DE2438343A1 (en)
FR (1) FR2241179B1 (en)
GB (1) GB1478495A (en)
IT (1) IT1019991B (en)
SE (1) SE375680B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51130941A (en) * 1975-05-08 1976-11-13 Matsushita Electric Ind Co Ltd High-frequency heating apparatus
JPS5211447A (en) * 1975-07-18 1977-01-28 Matsushita Electric Ind Co Ltd High frequency heating apparatus
CH674563A5 (en) * 1987-03-24 1990-06-15 Gigatherm Mikrowellen Ag
GB9523568D0 (en) * 1995-11-17 1996-01-17 Andrews Gordon T Microwave cooking apparatus

Also Published As

Publication number Publication date
DE2438343A1 (en) 1975-02-20
FR2241179B1 (en) 1978-06-16
JPS5046470A (en) 1975-04-25
SE7311238L (en) 1975-02-18
IT1019991B (en) 1977-11-30
FR2241179A1 (en) 1975-03-14
CA1011821A (en) 1977-06-07
SE375680B (en) 1975-04-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee