GB1368105A - Door seals for microwave ovens - Google Patents

Door seals for microwave ovens

Info

Publication number
GB1368105A
GB1368105A GB4089671A GB4089671A GB1368105A GB 1368105 A GB1368105 A GB 1368105A GB 4089671 A GB4089671 A GB 4089671A GB 4089671 A GB4089671 A GB 4089671A GB 1368105 A GB1368105 A GB 1368105A
Authority
GB
United Kingdom
Prior art keywords
door
microwave
sept
transmission line
access opening
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
GB4089671A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1368105A publication Critical patent/GB1368105A/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

Landscapes

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

Abstract

1368105 Microwave ovens MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 2 Sept 1971 [9 Sept 1970] 40896/71 Heading H5H A microwave oven door seal 24 is provided by having a bi-planar transmission line 50 extending between the adjacent opposed surfaces of the heating cavity access opening 38 and the door 20 and feeding a pair of microwave energy filter cavities 58, 60. The filters 58, 60, are both in the door 20, or one is in the door whilst the other is in the oven wall, Fig. 6. A block 168, Fig. 7 (not shown), of lossy material, such as SiC, water extended polyethylene or silicone rubber graphite, may be situated in the cavity of filter 58 to absorb any energy leaking into the transmission line 50. The door may be mounted at an angle to the access opening, Fig. 9, to help preserve the seal when the door is opened initially. This provides additional protection in case the usual safety switches and interlocks are malfunctioning. (For Figures see next page.)
GB4089671A 1970-09-09 1971-09-02 Door seals for microwave ovens Expired GB1368105A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7064170A 1970-09-09 1970-09-09

Publications (1)

Publication Number Publication Date
GB1368105A true GB1368105A (en) 1974-09-25

Family

ID=22096521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4089671A Expired GB1368105A (en) 1970-09-09 1971-09-02 Door seals for microwave ovens

Country Status (6)

Country Link
US (1) US3629537A (en)
JP (1) JPS5145341B1 (en)
DE (1) DE2144548C3 (en)
FR (1) FR2107439A5 (en)
GB (1) GB1368105A (en)
NL (1) NL161961C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645892A (en) * 1983-03-15 1987-02-24 U.S. Philips Corporation Sealing arrangement for microwave ovens
WO2018102081A1 (en) * 2016-11-30 2018-06-07 Illinois Tool Works Inc. Rf choke and interface structures for employment with an rf oven

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835283A (en) * 1970-03-03 1974-09-10 Matsushita Electric Co Ltd Partition and front wall forming choke structure for a microwave oven
JPS5018181Y1 (en) * 1970-06-01 1975-06-04
CA956701A (en) * 1971-05-20 1974-10-22 Matsushita Electric Industrial Co., Ltd. Microwave oven
US3736398A (en) * 1971-11-15 1973-05-29 Litton Systems Inc Method and means for controlling electromagnetic wave energy leakage in microwave ovens
US3955060A (en) * 1974-08-14 1976-05-04 Philip Morris Incorporated Microwave oven construction
US3985993A (en) * 1974-08-29 1976-10-12 U.S. Philips Corporation Sealing arrangement in a microwave oven
US4059742A (en) * 1975-07-09 1977-11-22 Litton Systems, Inc. Microwave seal for combination cooking apparatus
US4013861A (en) * 1975-08-13 1977-03-22 The Frymaster Corporation Microwave oven door seal
US4081647A (en) * 1976-05-10 1978-03-28 Roper Corporation Energy seal for a microwave oven
US4166207A (en) * 1977-05-31 1979-08-28 Whirlpool Corporation Microwave generating device--door seal
US4122323A (en) * 1977-09-22 1978-10-24 General Electric Company Phase shift device for microwave oven door seal
JPS5486831A (en) * 1977-12-21 1979-07-10 Matsushita Electric Ind Co Ltd High-frequency heater
JPS5948517B2 (en) * 1979-09-11 1984-11-27 松下電器産業株式会社 High frequency heating device
JPS6047716B2 (en) * 1980-10-03 1985-10-23 松下電器産業株式会社 High frequency heating device
US4475023A (en) * 1981-09-25 1984-10-02 Hitachi Heating Appliances Co., Ltd. Microwave heating apparatus with fundamental and second higher harmonic chokes
GB2122059B (en) * 1982-05-28 1985-08-07 Tdk Electronics Co Ltd An absorber device for microwave leakage
JPS60174308U (en) * 1984-04-25 1985-11-19 株式会社ヨコオ Elements of flexible antenna
DE102004052798B4 (en) * 2004-11-02 2006-08-31 Electrolux Home Products Corp. N.V. Cooking oven
GB0511459D0 (en) * 2005-06-06 2005-07-13 Glen Dimplex Home Appliances L Choke system and oven
CN100365344C (en) * 2006-02-28 2008-01-30 王宝根 Microwave oven with microwave absorbing chamber
DE102007043483B4 (en) * 2007-09-12 2009-07-09 Rational Ag A sealing device for reducing a microwave leakage from a cooking appliance and cooking appliance with at least one such sealing device
US9179506B2 (en) * 2010-05-26 2015-11-03 Lg Electronics Inc. Door choke and cooking apparatus including the same
USD762415S1 (en) * 2014-11-13 2016-08-02 Lg Electronics Inc. Oven range
USD762086S1 (en) * 2014-11-13 2016-07-26 Lg Electronics Inc. Oven range
US10873996B2 (en) * 2016-11-30 2020-12-22 Illinois Tool Works, Inc. Oven door assembly for an RF oven
KR101991956B1 (en) * 2017-04-12 2019-06-24 엘지전자 주식회사 Cooking appliance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958754A (en) * 1958-12-15 1960-11-01 Gen Electric Electronic ovens
DE1086365B (en) * 1959-05-25 1960-08-04 Mikrowellen Ges M B H Deutsche Closure flap for working areas of microwave ovens
US3182164A (en) * 1962-02-28 1965-05-04 Raytheon Co Electromagnetic energy seal
US3249731A (en) * 1963-11-14 1966-05-03 Westinghouse Electric Corp Oven

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645892A (en) * 1983-03-15 1987-02-24 U.S. Philips Corporation Sealing arrangement for microwave ovens
WO2018102081A1 (en) * 2016-11-30 2018-06-07 Illinois Tool Works Inc. Rf choke and interface structures for employment with an rf oven
US10912166B2 (en) 2016-11-30 2021-02-02 Illinois Tool Works, Inc. RF choke and interface structures for employment with an RF oven

Also Published As

Publication number Publication date
NL161961B (en) 1979-10-15
DE2144548C3 (en) 1978-12-07
NL7112263A (en) 1972-03-13
FR2107439A5 (en) 1972-05-05
DE2144548A1 (en) 1972-03-16
DE2144548B2 (en) 1978-04-27
JPS5145341B1 (en) 1976-12-03
NL161961C (en) 1980-03-17
US3629537A (en) 1971-12-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee