FR833137A - Improvements to thermionic electrodes for electric discharge tubes - Google Patents

Improvements to thermionic electrodes for electric discharge tubes

Info

Publication number
FR833137A
FR833137A FR833137DA FR833137A FR 833137 A FR833137 A FR 833137A FR 833137D A FR833137D A FR 833137DA FR 833137 A FR833137 A FR 833137A
Authority
FR
France
Prior art keywords
electric discharge
discharge tubes
thermionic electrodes
thermionic
electrodes
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
Other languages
French (fr)
Inventor
Stanley Alfred Abbott
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 filed Critical
Application granted granted Critical
Publication of FR833137A publication Critical patent/FR833137A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
FR833137D 1937-02-05 1938-02-04 Improvements to thermionic electrodes for electric discharge tubes Expired FR833137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3493/37A GB487699A (en) 1937-02-05 1937-02-05 Improvements in thermionic cathodes for use in electric discharge tubes

Publications (1)

Publication Number Publication Date
FR833137A true FR833137A (en) 1938-10-12

Family

ID=9759362

Family Applications (1)

Application Number Title Priority Date Filing Date
FR833137D Expired FR833137A (en) 1937-02-05 1938-02-04 Improvements to thermionic electrodes for electric discharge tubes

Country Status (3)

Country Link
US (1) US2162414A (en)
FR (1) FR833137A (en)
GB (1) GB487699A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449113A (en) * 1944-07-22 1948-09-14 Fruth Hal Frederick Electric discharge device
FR1478565A (en) * 1966-03-15 1967-04-28 Lampes Sa Improvement in electric discharge lamps containing metal iodides including sodium iodide
US3906271A (en) * 1974-08-13 1975-09-16 Itt Ceramic cup electrode for a gas discharge device
US3988629A (en) * 1974-10-07 1976-10-26 General Electric Company Thermionic wick electrode for discharge lamps
US4152620A (en) * 1978-06-29 1979-05-01 Westinghouse Electric Corp. High intensity vapor discharge lamp with sintering aids for electrode emission materials

Also Published As

Publication number Publication date
GB487699A (en) 1938-06-24
US2162414A (en) 1939-06-13

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