CH222055A - Hot cathode for gas or vapor-filled discharge tubes, which is made up of directly heated individual elements connected in parallel. - Google Patents

Hot cathode for gas or vapor-filled discharge tubes, which is made up of directly heated individual elements connected in parallel.

Info

Publication number
CH222055A
CH222055A CH222055DA CH222055A CH 222055 A CH222055 A CH 222055A CH 222055D A CH222055D A CH 222055DA CH 222055 A CH222055 A CH 222055A
Authority
CH
Switzerland
Prior art keywords
vapor
gas
parallel
individual elements
elements connected
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 CH222055A publication Critical patent/CH222055A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
CH222055D 1940-03-27 1941-03-25 Hot cathode for gas or vapor-filled discharge tubes, which is made up of directly heated individual elements connected in parallel. CH222055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL222055X 1940-03-27

Publications (1)

Publication Number Publication Date
CH222055A true CH222055A (en) 1942-06-30

Family

ID=19779413

Family Applications (1)

Application Number Title Priority Date Filing Date
CH222055D CH222055A (en) 1940-03-27 1941-03-25 Hot cathode for gas or vapor-filled discharge tubes, which is made up of directly heated individual elements connected in parallel.

Country Status (7)

Country Link
US (1) US2319338A (en)
BE (1) BE440990A (en)
CH (1) CH222055A (en)
DE (1) DE1079214B (en)
FR (1) FR871060A (en)
GB (2) GB549992A (en)
NL (1) NL58861C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2276681A1 (en) * 1974-06-28 1976-01-23 Thomson Csf GRID FOR ELECTRONIC TUBE AND TUBE WITH SUCH GRID
US4598226A (en) * 1984-12-17 1986-07-01 Clegg John E Concave conical foil-filament lamp
US4585971A (en) * 1984-12-18 1986-04-29 Clegg John E Flat circular foil-filament lamp
DE3517060A1 (en) * 1985-05-11 1986-11-13 Trützschler GmbH & Co KG, 4050 Mönchengladbach DEVICE ON A CARD WITH A RIBBON INSERT

Also Published As

Publication number Publication date
BE440990A (en)
NL58861C (en)
FR871060A (en) 1942-04-07
DE1079214B (en) 1960-04-07
GB549992A (en) 1942-12-17
US2319338A (en) 1943-05-18
GB601200A (en) 1948-04-29

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