GB644409A - Improvements in electric discharge lamps - Google Patents

Improvements in electric discharge lamps

Info

Publication number
GB644409A
GB644409A GB3287/48A GB328748A GB644409A GB 644409 A GB644409 A GB 644409A GB 3287/48 A GB3287/48 A GB 3287/48A GB 328748 A GB328748 A GB 328748A GB 644409 A GB644409 A GB 644409A
Authority
GB
United Kingdom
Prior art keywords
discharge lamps
feb
anodes
coiled
electric discharge
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
GB3287/48A
Other languages
English (en)
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 GB644409A publication Critical patent/GB644409A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode

Landscapes

  • Discharge Lamp (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
GB3287/48A 1947-02-05 1948-02-04 Improvements in electric discharge lamps Expired GB644409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US726603A US2479164A (en) 1947-02-05 1947-02-05 Electric glow discharge lamp

Publications (1)

Publication Number Publication Date
GB644409A true GB644409A (en) 1950-10-11

Family

ID=24919272

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3287/48A Expired GB644409A (en) 1947-02-05 1948-02-04 Improvements in electric discharge lamps

Country Status (4)

Country Link
US (1) US2479164A (fr)
ES (1) ES182063A1 (fr)
FR (1) FR961959A (fr)
GB (1) GB644409A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719932A (en) * 1947-01-15 1955-10-04 Gen Electric Soft glass ultraviolet discharge lamp
US2623191A (en) * 1947-03-20 1952-12-23 Int Standard Electric Corp Electric discharge tube
BE542776A (fr) * 1954-11-16
US3067355A (en) * 1960-03-16 1962-12-04 Burroughs Corp Indicator tube
DE2732060C2 (de) * 1976-07-19 1986-06-12 Thorn Emi Ltd., London Elektrische Leuchtstofflampe
US4297617A (en) * 1980-03-24 1981-10-27 Galaspie Charles E Light producing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1675350A (en) * 1921-02-09 1928-07-03 Philips Nv Electric gas-filled glow-discharge device
US2984469A (en) * 1958-04-25 1961-05-16 Goodman Mfg Co Tensioning means for trimmer chain of boring type miner

Also Published As

Publication number Publication date
US2479164A (en) 1949-08-16
FR961959A (fr) 1950-05-26
ES182063A1 (es) 1948-03-01

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