FR928803A - Procédés de fabrication de cathodes - Google Patents

Procédés de fabrication de cathodes

Info

Publication number
FR928803A
FR928803A FR928803DA FR928803A FR 928803 A FR928803 A FR 928803A FR 928803D A FR928803D A FR 928803DA FR 928803 A FR928803 A FR 928803A
Authority
FR
France
Prior art keywords
fabrication processes
cathode fabrication
cathode
processes
fabrication
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)
Inventor
Raymond Richard Back
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR928803A publication Critical patent/FR928803A/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
    • H01J9/045—Activation of assembled cathode

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electron Sources, Ion Sources (AREA)
FR928803D 1943-12-03 1946-03-27 Procédés de fabrication de cathodes Expired FR928803A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB265035X 1943-12-03

Publications (1)

Publication Number Publication Date
FR928803A true FR928803A (fr) 1947-12-09

Family

ID=10244684

Family Applications (1)

Application Number Title Priority Date Filing Date
FR928803D Expired FR928803A (fr) 1943-12-03 1946-03-27 Procédés de fabrication de cathodes

Country Status (4)

Country Link
US (1) US2523269A (fr)
BE (1) BE465611A (fr)
CH (1) CH265035A (fr)
FR (1) FR928803A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680206A (en) * 1948-07-19 1954-06-01 Sylvania Electric Prod Cold-cathode gas-filled diode
US2834905A (en) * 1956-03-28 1958-05-13 Bendix Aviat Corp Electron discharge device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1965849A (en) * 1927-07-29 1934-07-10 Mcllvaine Patent Corp Electronic tube
US2121589A (en) * 1934-06-28 1938-06-21 Westinghouse Electric & Mfg Co Emissive incandescent cathode
US2232002A (en) * 1939-01-26 1941-02-18 Westinghouse Electric & Mfg Co Gaseous electric relay device
GB547645A (en) * 1941-09-19 1942-09-04 Philips Nv Improvements in or relating to electric discharge tubes

Also Published As

Publication number Publication date
BE465611A (fr)
CH265035A (fr) 1949-11-15
US2523269A (en) 1950-09-26

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