FR1038245A - Improvements in manufacturing processes for emissive electrodes for electric discharge devices - Google Patents

Improvements in manufacturing processes for emissive electrodes for electric discharge devices

Info

Publication number
FR1038245A
FR1038245A FR1038245DA FR1038245A FR 1038245 A FR1038245 A FR 1038245A FR 1038245D A FR1038245D A FR 1038245DA FR 1038245 A FR1038245 A FR 1038245A
Authority
FR
France
Prior art keywords
electric discharge
manufacturing processes
discharge devices
emissive electrodes
emissive
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)
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.)
Claude Paz et Visseaux SA
Original Assignee
Societe Anonyme pour les Applications de lElectricite et des Gaz Rares Etablissement Claude Paz et Silva
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 Societe Anonyme pour les Applications de lElectricite et des Gaz Rares Etablissement Claude Paz et Silva filed Critical Societe Anonyme pour les Applications de lElectricite et des Gaz Rares Etablissement Claude Paz et Silva
Application granted granted Critical
Publication of FR1038245A publication Critical patent/FR1038245A/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
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
FR1038245D 1951-06-08 1951-06-08 Improvements in manufacturing processes for emissive electrodes for electric discharge devices Expired FR1038245A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR964793X 1951-06-08

Publications (1)

Publication Number Publication Date
FR1038245A true FR1038245A (en) 1953-09-25

Family

ID=9499566

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1038245D Expired FR1038245A (en) 1951-06-08 1951-06-08 Improvements in manufacturing processes for emissive electrodes for electric discharge devices

Country Status (6)

Country Link
US (1) US2753615A (en)
BE (1) BE511706A (en)
CH (1) CH302721A (en)
DE (1) DE964793C (en)
FR (1) FR1038245A (en)
GB (1) GB713709A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872611A (en) * 1953-11-16 1959-02-03 Sylvania Electric Prod Cathode

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL237157A (en) * 1958-03-17
US3018404A (en) * 1958-03-27 1962-01-23 Raytheon Co Electron tube cathodes
US2932757A (en) * 1958-04-04 1960-04-12 Rca Corp High transconductance electron tube
US3041210A (en) * 1959-12-02 1962-06-26 Tung Sol Electric Inc Method of making cold cathodes for vacuum tubes and article
US3226806A (en) * 1960-03-18 1966-01-04 Eitel Mccullough Inc Method of making a cathode heater assembly
US3210589A (en) * 1960-04-28 1965-10-05 Westinghouse Electric Corp Electric incandescent lamp having filament of partially recrystallized fibrous structure
US3184636A (en) * 1961-06-15 1965-05-18 Sylvania Electric Prod Cold cathode
US3525135A (en) * 1964-04-16 1970-08-25 Gen Electric Thermionic cathode
DE1120016B (en) * 1964-07-08 1961-12-21 Elger 1 Alpenlaendisches Unter Unheated electrode, especially for low-voltage fluorescent lamps, as well as lamps with such electrodes
US5585694A (en) * 1990-12-04 1996-12-17 North American Philips Corporation Low pressure discharge lamp having sintered "cold cathode" discharge electrodes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2142331A (en) * 1935-03-09 1939-01-03 Bell Telephone Labor Inc Electron emitting cathode
US2249672A (en) * 1936-12-10 1941-07-15 Gen Electric Discharge device
CH209750A (en) * 1937-09-25 1940-04-30 Lorenz C Ag Method of manufacturing a discharge tube.
US2317754A (en) * 1940-07-31 1943-04-27 Gorlich Paul Method of producing secondary electron emitting cathodes
BE461895A (en) * 1944-01-17
NL77182C (en) * 1948-12-04

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872611A (en) * 1953-11-16 1959-02-03 Sylvania Electric Prod Cathode

Also Published As

Publication number Publication date
DE964793C (en) 1957-05-29
GB713709A (en) 1954-08-18
US2753615A (en) 1956-07-10
BE511706A (en)
CH302721A (en) 1954-10-31

Similar Documents

Publication Publication Date Title
CH314129A (en) Cathode bodies for electric discharge tubes
FR1042303A (en) Development of solid-contact current-breaking devices
FR1038245A (en) Improvements in manufacturing processes for emissive electrodes for electric discharge devices
CH314776A (en) Cathode bodies for electric discharge tubes
FR1075165A (en) Cathode for electric discharge tube
CH314128A (en) Activated electrode for electrical discharge vessels
FR1062517A (en) Improvements in tetraethyl lead manufacturing processes
FR1053054A (en) Improvements in manufacturing processes for electrodes for electric discharge apparatus
FR1002399A (en) Improvements in the manufacturing processes of electric discharge devices
FR60166E (en) Improvements in manufacturing processes for continuous load electrical conductors
FR945774A (en) Improvements in manufacturing processes for electric discharge tubes
FR1138260A (en) Cathode for electric discharge lamp
FR1014729A (en) Improvements in the manufacture of electrodes for electric discharge tubes
AT177844B (en) Cathode bodies for electric discharge tubes
FR1046319A (en) Electric discharge tubes
AT176614B (en) Electric discharge tube
FR1057869A (en) Process for manufacturing an electrode for an electric discharge device
FR1059274A (en) Advanced electrical transformer especially for electric discharge tubes
FR997385A (en) Improvement in electrical discharge devices with metal vapor
FR1080850A (en) Electric discharge devices
FR1056334A (en) Improvements in the manufacture of copper oxide rectifiers
FR63359E (en) Electric discharge devices
FR1049618A (en) Improvements in the construction of grids intended for electric discharge devices
FR1114838A (en) Improvements in the manufacturing process of electric discharge devices
FR1067765A (en) electrode for electric discharge device