CH224493A - Process for the production of an indirectly heated cathode for electrical discharge tubes and cathode produced according to this process. - Google Patents

Process for the production of an indirectly heated cathode for electrical discharge tubes and cathode produced according to this process.

Info

Publication number
CH224493A
CH224493A CH224493DA CH224493A CH 224493 A CH224493 A CH 224493A CH 224493D A CH224493D A CH 224493DA CH 224493 A CH224493 A CH 224493A
Authority
CH
Switzerland
Prior art keywords
cathode
production
produced according
electrical discharge
discharge tubes
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 CH224493A publication Critical patent/CH224493A/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
CH224493D 1940-04-23 1941-04-21 Process for the production of an indirectly heated cathode for electrical discharge tubes and cathode produced according to this process. CH224493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL224493X 1940-04-23

Publications (1)

Publication Number Publication Date
CH224493A true CH224493A (en) 1942-11-30

Family

ID=19779564

Family Applications (1)

Application Number Title Priority Date Filing Date
CH224493D CH224493A (en) 1940-04-23 1941-04-21 Process for the production of an indirectly heated cathode for electrical discharge tubes and cathode produced according to this process.

Country Status (4)

Country Link
BE (1) BE441262A (en)
CH (1) CH224493A (en)
FR (1) FR871659A (en)
NL (1) NL54818C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2100530A1 (en) * 1992-09-02 1994-03-03 Michael W. Bogart Needle curving apparatus
CA2106791A1 (en) * 1992-10-09 1994-04-10 Michael W. Bogart Needle curving apparatus
US5526666A (en) * 1992-10-09 1996-06-18 United States Surgical Corporation Apparatus for forming curved rectangular bodied needles
US5388441A (en) * 1992-12-29 1995-02-14 United States Surgical Corporation Needle curver with automatic feed
DE102010045638B4 (en) 2010-09-17 2012-12-06 Tenneco Gmbh Method for wrapping a body of an exhaust system

Also Published As

Publication number Publication date
BE441262A (en)
NL54818C (en)
FR871659A (en) 1942-05-05

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