GB1211024A - Improvements in or relating to microwave heating - Google Patents

Improvements in or relating to microwave heating

Info

Publication number
GB1211024A
GB1211024A GB5568167A GB5568167A GB1211024A GB 1211024 A GB1211024 A GB 1211024A GB 5568167 A GB5568167 A GB 5568167A GB 5568167 A GB5568167 A GB 5568167A GB 1211024 A GB1211024 A GB 1211024A
Authority
GB
United Kingdom
Prior art keywords
applicator
slots
energy
channels
propagate
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
GB5568167A
Inventor
Roger John Meredith
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Publication of GB1211024A publication Critical patent/GB1211024A/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
    • H05B6/78—Arrangements for continuous movement of material
    • 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

Landscapes

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

Abstract

1,211,024. Microwave heating. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 10 Feb., 1969 [9 Nov., 1967], No. 51099/67. Heading H5H. Apparatus for heating sheet material or discrete objects or particulate material using microwave energy comprises an applicator 3 adapted to propagate the energy as a slow wave only in a direction parallel to the direction of movement AA of the material 2 through a heating zone. A loss-free conveyer belt 1 of polypropylene conveys the material 2 through two halves 3a, 3b, of the applicator or, alternatively, a stainless steel belt 1<SP>1</SP>, Fig. 5 (not shown), carries material beneath an applicator 3<SP>1</SP> of similar structure to part 3a. Applicator part 3a has a plurality of channels A-F, each #/4 deep, with horizontal coupling slots S1-S4 therebetween and vertical slots V1-V3 to prevent propagation of energy transverse to the direction of material movement, the slots V1- V3 being 3#/8 apart. Energy is coupled from the waveguide W into channel A through slots L1-L4. Channels X, X<SP>1</SP>, prevent leakage from channels A, A<SP>1</SP>, to the outside of applicator 3 by acting as quarter wavelength chokes. In an alternative, the applicator is fed at the centre to propagate slow waves in opposite directions.
GB5568167A 1967-11-09 1967-11-09 Improvements in or relating to microwave heating Expired GB1211024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5109967 1967-11-09

Publications (1)

Publication Number Publication Date
GB1211024A true GB1211024A (en) 1970-11-04

Family

ID=10458651

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5568167A Expired GB1211024A (en) 1967-11-09 1967-11-09 Improvements in or relating to microwave heating

Country Status (1)

Country Link
GB (1) GB1211024A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2417577A1 (en) * 1973-04-13 1974-10-31 Thomson Csf HIGH FREQUENCY HEATING DEVICE FOR HEATING DIELECTRIC MATERIAL WITH SMALL SECTION
US4471194A (en) * 1971-05-20 1984-09-11 Matsushita Electric Industrial Co., Ltd. Electromagnetic energy seal for high frequency heating apparatus
GB2206470A (en) * 1987-06-26 1989-01-05 Emi Plc Thorn Cooker appliances
EP2637479A1 (en) * 2012-03-06 2013-09-11 Samsung Corning Precision Materials Co., Ltd. High frequency heating apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471194A (en) * 1971-05-20 1984-09-11 Matsushita Electric Industrial Co., Ltd. Electromagnetic energy seal for high frequency heating apparatus
DE2417577A1 (en) * 1973-04-13 1974-10-31 Thomson Csf HIGH FREQUENCY HEATING DEVICE FOR HEATING DIELECTRIC MATERIAL WITH SMALL SECTION
GB2206470A (en) * 1987-06-26 1989-01-05 Emi Plc Thorn Cooker appliances
EP2637479A1 (en) * 2012-03-06 2013-09-11 Samsung Corning Precision Materials Co., Ltd. High frequency heating apparatus

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees