CH311391A - A method of manufacturing a cathode for an electric discharge tube and a cathode manufactured by this method. - Google Patents

A method of manufacturing a cathode for an electric discharge tube and a cathode manufactured by this method.

Info

Publication number
CH311391A
CH311391A CH311391DA CH311391A CH 311391 A CH311391 A CH 311391A CH 311391D A CH311391D A CH 311391DA CH 311391 A CH311391 A CH 311391A
Authority
CH
Switzerland
Prior art keywords
cathode
manufacturing
discharge tube
electric discharge
manufactured
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH311391A publication Critical patent/CH311391A/en

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
    • H01J9/047—Cathodes having impregnated bodies
CH311391D 1951-03-22 1952-03-20 A method of manufacturing a cathode for an electric discharge tube and a cathode manufactured by this method. CH311391A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21697251A 1951-03-22 1951-03-22
US555221A US3010826A (en) 1951-03-22 1955-12-14 Method of making dispenser type cathodes

Publications (1)

Publication Number Publication Date
CH311391A true CH311391A (en) 1955-11-30

Family

ID=26911501

Family Applications (1)

Application Number Title Priority Date Filing Date
CH311391D CH311391A (en) 1951-03-22 1952-03-20 A method of manufacturing a cathode for an electric discharge tube and a cathode manufactured by this method.

Country Status (7)

Country Link
US (1) US3010826A (en)
BE (1) BE510092A (en)
CH (1) CH311391A (en)
DE (1) DE927518C (en)
FR (1) FR1066084A (en)
GB (1) GB705537A (en)
NL (1) NL91413C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967137C (en) * 1953-02-05 1957-10-10 Csf Process for the production of a cathode for electrical discharge vessels, in which wires extending perpendicular to the emitting surface close off a supply of emission substances
US3258636A (en) * 1961-09-01 1966-06-28 Electron emitter with activator of sill cide, boride or carbide of solid solu- tion of barium and at least one other alkaline earth metal
JPH11339633A (en) * 1997-11-04 1999-12-10 Sony Corp Impregnated cathode and manufacture therefor and electron gun and electronic tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1390243A (en) * 1919-09-15 1921-09-06 Gen Electric Method of welding low-melting-point metals and alloys to high-melting-point metals
US1671953A (en) * 1927-07-15 1928-05-29 Gen Electric Process for making x-ray anodes
US1904568A (en) * 1929-05-14 1933-04-18 Gen Electric Disk-like cutting tool
US2121589A (en) * 1934-06-28 1938-06-21 Westinghouse Electric & Mfg Co Emissive incandescent cathode
US2492142A (en) * 1945-10-17 1949-12-27 Kenneth J Germeshausen Electric system embodying coldcathode gaseous discharge device
US2677873A (en) * 1946-01-10 1954-05-11 Us Navy Method of making nickel sponge cathodes
NL69486C (en) * 1947-11-26
BE498869A (en) * 1949-10-25

Also Published As

Publication number Publication date
US3010826A (en) 1961-11-28
GB705537A (en) 1954-03-17
BE510092A (en)
NL91413C (en)
FR1066084A (en) 1954-06-02
DE927518C (en) 1955-05-09

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