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FR989247A - Cathode et son procédé de fabrication - Google Patents

Cathode et son procédé de fabrication

Info

Publication number
FR989247A
FR989247A FR989247DA FR989247A FR 989247 A FR989247 A FR 989247A FR 989247D A FR989247D A FR 989247DA FR 989247 A FR989247 A FR 989247A
Authority
FR
France
Prior art keywords
cathode
manufacturing process
manufacturing
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
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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
Priority claimed from US595309A external-priority patent/US2433821A/en
Application filed by Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Application granted granted Critical
Publication of FR989247A publication Critical patent/FR989247A/fr
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)
  • Solid Thermionic Cathode (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
FR989247D 1945-05-23 1948-02-24 Cathode et son procédé de fabrication Expired FR989247A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US595309A US2433821A (en) 1945-05-23 1945-05-23 Electron emissive cathode
US794519A US2613164A (en) 1945-05-23 1947-12-30 Method of coating electron emissive cathodes

Publications (1)

Publication Number Publication Date
FR989247A true FR989247A (fr) 1951-09-06

Family

ID=27082222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR989247D Expired FR989247A (fr) 1945-05-23 1948-02-24 Cathode et son procédé de fabrication

Country Status (3)

Country Link
US (1) US2613164A (fr)
FR (1) FR989247A (fr)
GB (1) GB640381A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830917A (en) * 1954-06-07 1958-04-15 Bell Telephone Labor Inc Cathode for electron discharge devices
US3097112A (en) * 1960-01-12 1963-07-09 Gen Electric Method and apparatus for making cathodes
DE1182743B (de) * 1961-11-10 1964-12-03 Patra Patent Treuhand Anode fuer eine Hochdruckentladungslampe, insbesondere fuer eine Edelgas-Hochdruckentladungslampe
US3261076A (en) * 1962-01-26 1966-07-19 Philips Corp Method of manufacturing photoelectric cell

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US934833A (en) * 1908-01-09 1909-09-21 Harry G Parker Separating apparatus.
US1217071A (en) * 1916-04-29 1917-02-20 Charles Rust Painting apparatus.
US1532533A (en) * 1919-12-16 1925-04-07 Western Electric Co Colloidal suspension
US1939075A (en) * 1927-01-03 1933-12-12 Westinghouse Electric & Mfg Co Coating composition for electronemitting elements
US2009232A (en) * 1934-07-24 1935-07-23 John M Hood Apparatus for applying waxes, rosins, oils, etc., to textile fibers, yarns, or fabrics
US2119309A (en) * 1934-12-21 1938-05-31 John C Batchelor Method of forming a fluorescent screen
US2158981A (en) * 1936-08-05 1939-05-16 Sprague Specialties Co Electrolytic device
US2355232A (en) * 1941-07-25 1944-08-08 Burgess Battery Co Dry cell apparatus

Also Published As

Publication number Publication date
US2613164A (en) 1952-10-07
GB640381A (en) 1950-07-19

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