GB1336829A - Filamentary electrode and fabrication thereof - Google Patents

Filamentary electrode and fabrication thereof

Info

Publication number
GB1336829A
GB1336829A GB2590072A GB2590072A GB1336829A GB 1336829 A GB1336829 A GB 1336829A GB 2590072 A GB2590072 A GB 2590072A GB 2590072 A GB2590072 A GB 2590072A GB 1336829 A GB1336829 A GB 1336829A
Authority
GB
United Kingdom
Prior art keywords
mandrel
wire
wires
electrode
turns
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
GB2590072A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1336829A publication Critical patent/GB1336829A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
GB2590072A 1971-07-06 1972-06-02 Filamentary electrode and fabrication thereof Expired GB1336829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15980171A 1971-07-06 1971-07-06

Publications (1)

Publication Number Publication Date
GB1336829A true GB1336829A (en) 1973-11-14

Family

ID=22574082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2590072A Expired GB1336829A (en) 1971-07-06 1972-06-02 Filamentary electrode and fabrication thereof

Country Status (6)

Country Link
US (1) US3736458A (pt)
JP (1) JPS5238353B1 (pt)
AR (1) AR193270A1 (pt)
BE (1) BE785860A (pt)
BR (1) BR7204454D0 (pt)
GB (1) GB1336829A (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123442A1 (de) * 1981-06-12 1982-12-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Gluehwendel fuer eine elektrische lampe und verfahren zur herstellung
US7744667B2 (en) 2007-02-05 2010-06-29 Samsung Gwangju Electronics Co., Ltd. Cyclone separating apparatus for a vacuum cleaner

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2043331B (en) * 1978-12-26 1982-11-17 Gen Electric Electrode for high pressure metal-vapour lamp
DE19527653A1 (de) * 1995-07-28 1997-01-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrodenwendel für Entladungslampen und Verfahren zur Herstellung einer derartigen Elektrodenwendel
US7218047B2 (en) * 2000-12-13 2007-05-15 Hamamatsu Photonics K. K. Indirectly heated electrode for gas discharge tube
WO2002049069A1 (fr) * 2000-12-13 2002-06-20 Hamamatsu Photonics K.K. Electrode a chauffage indirect pour tube a decharge gazeuse
EP1482536A4 (en) * 2002-03-05 2006-08-09 Mineta Company Ltd WENDEL
US7541726B2 (en) * 2006-05-17 2009-06-02 Osram Sylvania Inc. Lamp filament

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2394474A (en) * 1944-12-28 1946-02-05 Gen Electric Coiled filament or cathode and its manufacture
US3253894A (en) * 1962-01-12 1966-05-31 Westinghouse Electric Corp Composite wire and wire coil adapted for use in fabricating multiply-coiled electrodes
US3294125A (en) * 1963-11-14 1966-12-27 Westinghouse Electric Corp Electrode coil and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123442A1 (de) * 1981-06-12 1982-12-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Gluehwendel fuer eine elektrische lampe und verfahren zur herstellung
US7744667B2 (en) 2007-02-05 2010-06-29 Samsung Gwangju Electronics Co., Ltd. Cyclone separating apparatus for a vacuum cleaner

Also Published As

Publication number Publication date
US3736458A (en) 1973-05-29
BE785860A (fr) 1973-01-05
JPS5238353B1 (pt) 1977-09-28
BR7204454D0 (pt) 1973-06-14
AR193270A1 (es) 1973-04-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years