FR959951A - - Google Patents

Info

Publication number
FR959951A
FR959951A FR959951DA FR959951A FR 959951 A FR959951 A FR 959951A FR 959951D A FR959951D A FR 959951DA FR 959951 A FR959951 A FR 959951A
Authority
FR
France
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)
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.)
Publication date
Application granted granted Critical
Publication of FR959951A publication Critical patent/FR959951A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
FR959951D 1944-02-12 Expired FR959951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US522097A US2445993A (en) 1944-02-12 1944-02-12 Cathode structure

Publications (1)

Publication Number Publication Date
FR959951A true FR959951A (en) 1950-04-07

Family

ID=24079457

Family Applications (1)

Application Number Title Priority Date Filing Date
FR959951D Expired FR959951A (en) 1944-02-12

Country Status (2)

Country Link
US (1) US2445993A (en)
FR (1) FR959951A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899591A (en) * 1959-08-11 Electrical heating device
US2536879A (en) * 1943-02-15 1951-01-02 Gabrielli Ernesto System of getter protection in high vacuum tubes
BE475720A (en) * 1946-08-30
US2695442A (en) * 1947-08-26 1954-11-30 Hartford Nat Bank & Trust Co Method of manufacturing electric discharge tubes
US2668253A (en) * 1950-07-06 1954-02-02 American Television Inc Getter for electron discharge devices
US2656489A (en) * 1951-04-14 1953-10-20 Bell Telephone Labor Inc Electron discharge device and processing thereof
US2838708A (en) * 1954-06-09 1958-06-10 Gen Electric Electron discharge device and method of gettering
GB820065A (en) * 1954-10-22 1959-09-16 Gen Electric Improvements relating to cathode structures for electric discharge devices
US2849638A (en) * 1955-02-25 1958-08-26 Westinghouse Electric Corp Electrode structure and method for electronic tubes
US2831139A (en) * 1955-10-18 1958-04-15 James E Beggs High-frequency electron discharge device having adjustably spaced electrodes
US2900549A (en) * 1957-06-20 1959-08-18 Machlett Lab Inc Getter for electron tube
US3100813A (en) * 1959-01-12 1963-08-13 Sprague Electric Co Capacitor sealing means
US3023341A (en) * 1959-05-22 1962-02-27 Jr Jackson W Kendall Electron tube
DE1143589B (en) * 1959-12-22 1963-02-14 Edgerton Germeshausen And Grie Method of manufacturing a heater for cathodes of electrical discharge tubes
NL261666A (en) * 1960-02-25
US3184278A (en) * 1961-05-29 1965-05-18 Rca Corp Method of manufacturing electron discharge devices
US3277327A (en) * 1961-10-26 1966-10-04 Dunlee Corp X-ray diffraction tube
US3914638A (en) * 1972-05-24 1975-10-21 Gte Sylvania Inc Cathode structure for cathode ray tube
US4382646A (en) * 1980-11-13 1983-05-10 Radcal Corporation Method for removing gases caused by out-gassing in a vacuum vessel

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797990A (en) * 1926-02-06 1931-03-24 Arsene N Lucian Heater construction for cathodes
US2032179A (en) * 1933-04-12 1936-02-25 Westinghouse Electric & Mfg Co Oxide coated cathode for heavy duty service
US2078892A (en) * 1933-08-10 1937-04-27 The Union National Pittsburgh Vacuum tube and method of making the same
US2146365A (en) * 1934-12-13 1939-02-07 John C Batchelor Electron emitter
US2244358A (en) * 1939-12-30 1941-06-03 Rca Corp Thermionic cathode assembly
US2341941A (en) * 1941-07-18 1944-02-15 Westinghouse Electric & Mfg Co Vacuum discharge device
US2353743A (en) * 1941-08-26 1944-07-18 Gen Electric High-frequency electronic discharge device

Also Published As

Publication number Publication date
US2445993A (en) 1948-07-27

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