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FR954178A - Méthodes de fabrication de cathodes - Google Patents

Méthodes de fabrication de cathodes

Info

Publication number
FR954178A
FR954178A FR954178DA FR954178A FR 954178 A FR954178 A FR 954178A FR 954178D A FR954178D A FR 954178DA FR 954178 A FR954178 A FR 954178A
Authority
FR
France
Prior art keywords
fabrication methods
cathode fabrication
cathode
methods
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
Paul Georges Chevigny
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 FR954178A publication Critical patent/FR954178A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microwave Tubes (AREA)
FR954178D 1943-02-13 1947-10-10 Méthodes de fabrication de cathodes Expired FR954178A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US475737A US2397533A (en) 1943-02-13 1943-02-13 Method of making cathodes

Publications (1)

Publication Number Publication Date
FR954178A true FR954178A (fr) 1949-12-20

Family

ID=23888899

Family Applications (1)

Application Number Title Priority Date Filing Date
FR954178D Expired FR954178A (fr) 1943-02-13 1947-10-10 Méthodes de fabrication de cathodes

Country Status (2)

Country Link
US (1) US2397533A (fr)
FR (1) FR954178A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693546A (en) * 1948-07-10 1954-11-02 Eitel Mccullough Inc Electron emitter for electron tubes
US2827407A (en) * 1954-06-15 1958-03-18 Federal Mogul Corp Method of producing powdered steel products
US2879432A (en) * 1956-03-16 1959-03-24 Gen Electric Electron emitter
US3650850A (en) * 1970-04-07 1972-03-21 Richard Corth Method of making an undistorted coiled-coil tantalum carbide filament
DE3784507T2 (de) * 1987-10-29 1993-09-16 Varian Associates Formung einer korbfoermigen elektrode.

Also Published As

Publication number Publication date
US2397533A (en) 1946-04-02

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