FR1068124A - Cathode de tube électronique - Google Patents

Cathode de tube électronique

Info

Publication number
FR1068124A
FR1068124A FR1068124DA FR1068124A FR 1068124 A FR1068124 A FR 1068124A FR 1068124D A FR1068124D A FR 1068124DA FR 1068124 A FR1068124 A FR 1068124A
Authority
FR
France
Prior art keywords
electron tube
tube cathode
cathode
electron
tube
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
English (en)
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR1068124A publication Critical patent/FR1068124A/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
    • H01J1/26—Supports for the emissive material
FR1068124D 1951-10-11 1952-10-10 Cathode de tube électronique Expired FR1068124A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US250818A US2887607A (en) 1951-10-11 1951-10-11 Electron discharge device cathode

Publications (1)

Publication Number Publication Date
FR1068124A true FR1068124A (fr) 1954-06-22

Family

ID=22949287

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1068124D Expired FR1068124A (fr) 1951-10-11 1952-10-10 Cathode de tube électronique

Country Status (4)

Country Link
US (1) US2887607A (xx)
BE (1) BE514762A (xx)
FR (1) FR1068124A (xx)
GB (1) GB711124A (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1403072A (fr) * 1964-05-08 1965-06-18 Cie Ind Francaise Tubes Elect Perfectionnement aux cathodes tubulaires agrafées à chauffage indirect pour tubes électroniques
US4287011A (en) * 1979-05-11 1981-09-01 Radiation Dynamics, Inc. Closure method
US4560897A (en) * 1983-06-06 1985-12-24 The United States Of America As Represented By The Department Of Energy Rigid indented cylindrical cathode for X-ray tube
DK164275C (da) * 1990-05-22 1992-10-26 Hh Patent As Bearbejdningsmaskine, saasom en gennemloebstraeslibemaskine
US6904941B2 (en) * 2002-09-18 2005-06-14 David W. Howard Helically formed cylinder of varying length and diameter

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE119966C (xx) *
NL33511C (xx) * 1926-07-07
US1895133A (en) * 1930-05-02 1933-01-24 Bundy Tubing Co Tubing
US2116788A (en) * 1936-08-28 1938-05-10 Superior Tube Co Thermionic valve electrode construction
US2096044A (en) * 1936-09-25 1937-10-19 Parker Pen Co Tube and method of forming the same
US2118765A (en) * 1937-10-06 1938-05-24 Hygrade Sylvania Corp Electrode for electric discharge tubes
US2262758A (en) * 1937-10-08 1941-11-18 American Can Co Can body
US2220909A (en) * 1940-01-23 1940-11-12 Kershaw Henry Cathode sleeve for thermionic valves
US2319487A (en) * 1940-10-28 1943-05-18 Weatherhead Co Tank and method of making same
US2527166A (en) * 1948-08-02 1950-10-24 Bell Telephone Labor Inc Electrode assembly for electron discharge devices

Also Published As

Publication number Publication date
US2887607A (en) 1959-05-19
GB711124A (en) 1954-06-23
BE514762A (xx)

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