DE3561912D1 - A thermal limiting device - Google Patents

A thermal limiting device

Info

Publication number
DE3561912D1
DE3561912D1 DE8585300161T DE3561912T DE3561912D1 DE 3561912 D1 DE3561912 D1 DE 3561912D1 DE 8585300161 T DE8585300161 T DE 8585300161T DE 3561912 T DE3561912 T DE 3561912T DE 3561912 D1 DE3561912 D1 DE 3561912D1
Authority
DE
Germany
Prior art keywords
infra
wire
tube
red
quartz tube
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
DE8585300161T
Other languages
German (de)
Inventor
Peter William Crossley
Graham Howlett Goodchild
Bernard Frederick Fellerman
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.)
QED Intellectual Property Ltd
Original Assignee
Thorn EMI Patents 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10555336&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3561912(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thorn EMI Patents Ltd filed Critical Thorn EMI Patents Ltd
Application granted granted Critical
Publication of DE3561912D1 publication Critical patent/DE3561912D1/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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/744—Lamps as heat source, i.e. heating elements with protective gas envelope, e.g. halogen lamps
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/04—Heating plates with overheat protection means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Fuses (AREA)
  • Saccharide Compounds (AREA)
  • Glass Compositions (AREA)
  • Furan Compounds (AREA)

Abstract

A thermal limiting device (10) is provided in heating apparatus including four infra-red-emitting, tungsten-halogen lamps (5 to 8) supported above a layer (2) of themally-insulative material. The device (10) consists of a metallic wire (11) arranged to de-energise the lamps (5 to 8) when it is subjected to a predetermined temperature. The wire (11) is disposed within a quartz tube (12), which selectively transmits and absorbs infra-red radiation of different wavelengths. A thermally-conductive tube (14), having an infra-red-reflective outer surface, is located between the wire (11) and quartz tube (12). The tube (14) prevents infra-red radiation transmitted through the quartz tube (12) from reaching the wire (11), whilst infra-red radiation absorbed by the tube (12) heats the wire (11) by thermal conduction and convection.
DE8585300161T 1984-01-21 1985-01-10 A thermal limiting device Expired DE3561912D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848401621A GB8401621D0 (en) 1984-01-21 1984-01-21 Thermal limiter

Publications (1)

Publication Number Publication Date
DE3561912D1 true DE3561912D1 (en) 1988-04-21

Family

ID=10555336

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585300161T Expired DE3561912D1 (en) 1984-01-21 1985-01-10 A thermal limiting device

Country Status (4)

Country Link
EP (1) EP0150087B1 (en)
AT (1) ATE33085T1 (en)
DE (1) DE3561912D1 (en)
GB (1) GB8401621D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821496A1 (en) * 1988-06-25 1989-12-28 Ego Elektro Blanc & Fischer Temperature switch
DE3821495A1 (en) * 1988-06-25 1989-12-28 Ego Elektro Blanc & Fischer Temperature switch
DE3929965A1 (en) * 1989-09-08 1991-03-14 Ego Elektro Blanc & Fischer TEMPERATURE SWITCH
CN107515059B (en) * 2017-09-30 2023-04-14 南京工业大学 Electrical impedance-tungsten lamp composite type radiant heating experimental device and test system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355574A (en) * 1965-10-01 1967-11-28 Gen Motors Corp Electrical surface heater with plural lamps
US3663798A (en) * 1969-08-25 1972-05-16 Thermo Electron Corp An infrared heating surface
NZ196104A (en) * 1980-02-01 1984-08-24 Micropore International Ltd Cooker plate with twin element:thermal cut-out for one
GB2132060B (en) * 1982-12-24 1985-12-18 Thorn Emi Domestic Appliances Heating apparatus

Also Published As

Publication number Publication date
EP0150087A1 (en) 1985-07-31
GB8401621D0 (en) 1984-02-22
ATE33085T1 (en) 1988-04-15
EP0150087B1 (en) 1988-03-16

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8328 Change in the person/name/address of the agent

Free format text: BRUEMMERSTEDT, H., DIPL.-ING., PAT.-ANW., 3000 HANNOVER

8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee