FR788959A - Incandescent cathode activated - Google Patents

Incandescent cathode activated

Info

Publication number
FR788959A
FR788959A FR788959DA FR788959A FR 788959 A FR788959 A FR 788959A FR 788959D A FR788959D A FR 788959DA FR 788959 A FR788959 A FR 788959A
Authority
FR
France
Prior art keywords
incandescent cathode
cathode activated
activated
incandescent
cathode
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
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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
Priority claimed from US16486A external-priority patent/US2273762A/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR788959A publication Critical patent/FR788959A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
FR788959D 1934-04-17 1935-04-17 Incandescent cathode activated Expired FR788959A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE433520X 1934-04-17
US16486A US2273762A (en) 1934-04-17 1935-04-15 Incandescible cathode
US370538A US2273763A (en) 1934-04-17 1940-12-17 Incandescible cathode

Publications (1)

Publication Number Publication Date
FR788959A true FR788959A (en) 1935-10-21

Family

ID=32096462

Family Applications (1)

Application Number Title Priority Date Filing Date
FR788959D Expired FR788959A (en) 1934-04-17 1935-04-17 Incandescent cathode activated

Country Status (4)

Country Link
US (1) US2273763A (en)
FR (1) FR788959A (en)
GB (1) GB433520A (en)
NL (2) NL43688C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764504C (en) * 1936-09-01 1952-12-22 Siemens & Halske A G Coiled oxide cathode, especially for gas or vapor-filled discharge vessels

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422469A (en) * 1945-07-09 1947-06-17 Edward A Coomes Electron emitting cathode
US2447038A (en) * 1945-10-31 1948-08-17 Raytheon Mfg Co Cathode structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764504C (en) * 1936-09-01 1952-12-22 Siemens & Halske A G Coiled oxide cathode, especially for gas or vapor-filled discharge vessels

Also Published As

Publication number Publication date
NL48681C (en)
NL43688C (en)
GB433520A (en) 1935-08-15
US2273763A (en) 1942-02-17

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