CH259587A - Electric heating device, in particular for an indirectly heated cathode. - Google Patents

Electric heating device, in particular for an indirectly heated cathode.

Info

Publication number
CH259587A
CH259587A CH259587DA CH259587A CH 259587 A CH259587 A CH 259587A CH 259587D A CH259587D A CH 259587DA CH 259587 A CH259587 A CH 259587A
Authority
CH
Switzerland
Prior art keywords
heating device
electric heating
indirectly heated
heated cathode
cathode
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Standard Telephon Und Radio
Original Assignee
Standard Telephon & Radio Ag
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 Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH259587A publication Critical patent/CH259587A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/36—Tubes with flat electrodes, e.g. disc electrode
    • 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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
CH259587D 1944-01-31 1945-11-08 Electric heating device, in particular for an indirectly heated cathode. CH259587A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US520383A US2421039A (en) 1944-01-31 1944-01-31 Cathode structure

Publications (1)

Publication Number Publication Date
CH259587A true CH259587A (en) 1949-01-31

Family

ID=24072365

Family Applications (1)

Application Number Title Priority Date Filing Date
CH259587D CH259587A (en) 1944-01-31 1945-11-08 Electric heating device, in particular for an indirectly heated cathode.

Country Status (5)

Country Link
US (1) US2421039A (en)
BE (1) BE470922A (en)
CH (1) CH259587A (en)
FR (1) FR928312A (en)
GB (1) GB590520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296311A (en) * 1979-08-15 1981-10-20 The Kanthal Corporation Electric hot plate

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899591A (en) * 1959-08-11 Electrical heating device
US2500355A (en) * 1944-11-14 1950-03-14 Sylvania Electric Prod Electron discharge tube
US2436907A (en) * 1945-06-23 1948-03-02 Nasa Indirectly heated cathode
BE475720A (en) * 1946-08-30
GB820065A (en) * 1954-10-22 1959-09-16 Gen Electric Improvements relating to cathode structures for electric discharge devices
DE1143589B (en) * 1959-12-22 1963-02-14 Edgerton Germeshausen And Grie Method of manufacturing a heater for cathodes of electrical discharge tubes
US3558965A (en) * 1967-10-02 1971-01-26 Nat Video Corp Cathode for television tube and method of making
GB2192751B (en) * 1986-07-14 1991-02-13 Denki Kagaku Kogyo Kk Method of making a thermionic cathode structure.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1102249A (en) * 1911-10-31 1914-07-07 Cutler Hammer Mfg Co Electric resistance unit.
US1539497A (en) * 1922-03-27 1925-05-26 W B Mcallister Company Electrical heating device
US1866195A (en) * 1929-06-01 1932-07-05 Ile De France Radio valves employing gallium
FR700923A (en) * 1929-11-13 1931-03-09 Telefunken Gmbh Heated cathode tube and control electrode
US2051637A (en) * 1934-12-07 1936-08-18 Electric Trading Corp Electrical heating device
US2300891A (en) * 1941-04-25 1942-11-03 Hankscraft Co Liquid conductor heater
US2357905A (en) * 1942-01-26 1944-09-12 Mcgraw Electric Co Automatic sadiron
BE478852A (en) * 1942-06-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296311A (en) * 1979-08-15 1981-10-20 The Kanthal Corporation Electric hot plate

Also Published As

Publication number Publication date
FR928312A (en) 1947-11-25
BE470922A (en)
GB590520A (en) 1947-07-21
US2421039A (en) 1947-05-27

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