GB664207A - Improvements in and relating to ultra-high frequency electric heating apparatus - Google Patents

Improvements in and relating to ultra-high frequency electric heating apparatus

Info

Publication number
GB664207A
GB664207A GB18857/49A GB1885749A GB664207A GB 664207 A GB664207 A GB 664207A GB 18857/49 A GB18857/49 A GB 18857/49A GB 1885749 A GB1885749 A GB 1885749A GB 664207 A GB664207 A GB 664207A
Authority
GB
United Kingdom
Prior art keywords
cavity
heating
distance
ultra
wavelength
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
GB18857/49A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB664207A publication Critical patent/GB664207A/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
    • H05B6/76—Prevention of microwave leakage, e.g. door sealings
    • H05B6/763—Microwave radiation seals for doors
    • 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
    • H05B6/80—Apparatus for specific applications

Landscapes

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

Abstract

664,207. Dielectric heating. BRITISH THOMSON-HOUSTON CO., Ltd. July 18, 1949 [July 20, 1948], No. 18857/49. Class 39(iii) Food is cooked within a perforated metal cavity 21, supplied with ultra - high - frequency electric fields from a generator 28 and an antenna 30, the food being also heated by resistance elements 33, 34 and 35 which brown its outer surface. The latter are controlled by a switch 36 to give various degrees of heating. The cavity and heating elements are contained within a heat-insulated chamber 11 provided with a Hinged door 12. By projecting the antenna a distance of about one-quarter wavelength of the heating field from the rear wall of the cavity, and spacing the flange 23 a distance not exceeding one-eighth wavelength from the door, the heating fields are contained within the cavity. In addition the maximum dimension of the cavity perforations does not exceed one-eighth of the wavelength, and the flange 23 extends from the cavity a distance of about one-quarter wavelength.
GB18857/49A 1948-07-20 1949-07-18 Improvements in and relating to ultra-high frequency electric heating apparatus Expired GB664207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US664207XA 1948-07-20 1948-07-20

Publications (1)

Publication Number Publication Date
GB664207A true GB664207A (en) 1952-01-02

Family

ID=22069381

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18857/49A Expired GB664207A (en) 1948-07-20 1949-07-18 Improvements in and relating to ultra-high frequency electric heating apparatus

Country Status (1)

Country Link
GB (1) GB664207A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962364C (en) * 1952-11-08 1957-04-18 Elektronik G M B H Deutsche High-frequency device for treating an item
DE2751483A1 (en) * 1977-11-18 1979-05-23 Licentia Gmbh ELECTRICALLY HEATED OVEN WITH UNDER AND TOP HEATING AND WITH INTEGRATED MICROWAVE DEVICE
EP0551911A2 (en) * 1992-01-17 1993-07-21 Moulinex S.A. Apparatus and method of thawing and heating of frozen food

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962364C (en) * 1952-11-08 1957-04-18 Elektronik G M B H Deutsche High-frequency device for treating an item
DE2751483A1 (en) * 1977-11-18 1979-05-23 Licentia Gmbh ELECTRICALLY HEATED OVEN WITH UNDER AND TOP HEATING AND WITH INTEGRATED MICROWAVE DEVICE
EP0551911A2 (en) * 1992-01-17 1993-07-21 Moulinex S.A. Apparatus and method of thawing and heating of frozen food
FR2686401A1 (en) * 1992-01-17 1993-07-23 Moulinex Sa DEFROSTING AND WARMING MACHINE FOR FROZEN FOOD PREPARATION AND HEATING METHOD THEREFOR.
EP0551911A3 (en) * 1992-01-17 1994-04-06 Moulinex Sa

Similar Documents

Publication Publication Date Title
US2597825A (en) Combination electric and ultrahighfrequency heating apparatus
US2997566A (en) Microwave apparatus
GB977777A (en) Improvements in or relating to radio frequency ovens
GB752206A (en) Improvements in or relating to high frequency dielectric heating apparatus
GB629446A (en) Improvements in or relating to dielectric heating
GB621320A (en) Improvements relating to methods of electrical cooking
US3218429A (en) Dielectric heating apparatus
US2632838A (en) Ultrahigh-frequency electromag-netic radiation heating method and apparatus
GB622013A (en) Improvements in or relating to methods of heating substances by high-frequency electrostatic currents
GB664207A (en) Improvements in and relating to ultra-high frequency electric heating apparatus
GB2007949A (en) Microwave oven
GB666074A (en) Improvements in and relating to ultra-high frequency electromagnetic radiation heating apparatus
GB1086867A (en) Device for heating non-conducting substances, employing microwave energy
GB643605A (en) Improvements in and relating to high frequency dielectric heating
GB633916A (en) Improvements in or relating to dielectric heating apparatus
GB639144A (en) Improvements in and relating to high frequency electrical heating apparatus
GB978197A (en) Improvements in or relating to high frequency heating equipment
JPS5274941A (en) High frequency heating device
GB629445A (en) Improvements in or relating to dielectric heating apparatus
GB998390A (en) Improvements in or relating to ovens
GB659726A (en) Improvements in and relating to variable reactance devices
JPS5469852A (en) High frequency heating apparatus
GB603034A (en) Improvements in or relating to ironing apparatus
GB603033A (en) Improvements in or relating to ironing apparatus
JPS6422219A (en) High frequency heating apparatus