GB1478495A - Microwave oven - Google Patents
Microwave ovenInfo
- 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
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.
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)
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 |
-
1973
- 1973-08-17 SE SE7311238A patent/SE375680B/xx unknown
-
1974
- 1974-08-09 DE DE2438343A patent/DE2438343A1/en not_active Withdrawn
- 1974-08-14 GB GB3577174A patent/GB1478495A/en not_active Expired
- 1974-08-14 CA CA207,012A patent/CA1011821A/en not_active Expired
- 1974-08-14 JP JP49092440A patent/JPS5046470A/ja active Pending
- 1974-08-14 FR FR7428185A patent/FR2241179B1/fr not_active Expired
- 1974-08-15 IT IT26368/74A patent/IT1019991B/en active
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 |