FR2481000B1 - - Google Patents

Info

Publication number
FR2481000B1
FR2481000B1 FR8008708A FR8008708A FR2481000B1 FR 2481000 B1 FR2481000 B1 FR 2481000B1 FR 8008708 A FR8008708 A FR 8008708A FR 8008708 A FR8008708 A FR 8008708A FR 2481000 B1 FR2481000 B1 FR 2481000B1
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
FR8008708A
Other versions
FR2481000A1 (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.)
Thales SA
Original Assignee
Thomson CSF SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9241054&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR2481000(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR8008708A priority Critical patent/FR2481000A1/fr
Priority to EP81400577A priority patent/EP0038742B1/fr
Priority to DE8181400577T priority patent/DE3161478D1/de
Priority to US06/254,265 priority patent/US4459323A/en
Priority to JP5908981A priority patent/JPS56167232A/ja
Publication of FR2481000A1 publication Critical patent/FR2481000A1/fr
Application granted granted Critical
Publication of FR2481000B1 publication Critical patent/FR2481000B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microwave Tubes (AREA)
  • Solid Thermionic Cathode (AREA)
FR8008708A 1980-04-18 1980-04-18 Procede de realisation d'une cathode impregnee a grille integree, cathode obtenue par ce procede, et tube electronique muni d'une telle cathode Granted FR2481000A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8008708A FR2481000A1 (fr) 1980-04-18 1980-04-18 Procede de realisation d'une cathode impregnee a grille integree, cathode obtenue par ce procede, et tube electronique muni d'une telle cathode
EP81400577A EP0038742B1 (fr) 1980-04-18 1981-04-10 Procédé de réalisation d'une cathode imprégnée à grille intégrée, cathode obtenue par ce procédé, et tube électronique muni d'une telle cathode
DE8181400577T DE3161478D1 (en) 1980-04-18 1981-04-10 Manufacturing method for an integrated grid impregnated cathode, cathode obtained using this method and electron tube comprising such a cathode
US06/254,265 US4459323A (en) 1980-04-18 1981-04-15 Process for producing an impregnated cathode with an integrated grid, cathode obtained by this process and electron tube equipped with such a cathode
JP5908981A JPS56167232A (en) 1980-04-18 1981-04-18 Method of producing immersion type cathode integrated with grid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8008708A FR2481000A1 (fr) 1980-04-18 1980-04-18 Procede de realisation d'une cathode impregnee a grille integree, cathode obtenue par ce procede, et tube electronique muni d'une telle cathode

Publications (2)

Publication Number Publication Date
FR2481000A1 FR2481000A1 (fr) 1981-10-23
FR2481000B1 true FR2481000B1 (fr) 1982-08-20

Family

ID=9241054

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8008708A Granted FR2481000A1 (fr) 1980-04-18 1980-04-18 Procede de realisation d'une cathode impregnee a grille integree, cathode obtenue par ce procede, et tube electronique muni d'une telle cathode

Country Status (5)

Country Link
US (1) US4459323A (fr)
EP (1) EP0038742B1 (fr)
JP (1) JPS56167232A (fr)
DE (1) DE3161478D1 (fr)
FR (1) FR2481000A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418070A (en) * 1988-04-28 1995-05-23 Varian Associates, Inc. Tri-layer impregnated cathode
KR910005090B1 (en) * 1989-06-02 1991-07-22 Samsung Electronic Devices Method of making the spacer of display device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966552C (de) * 1939-10-17 1957-08-22 Electricitaets Ges Sanitas Mit Anordnung von Quarzkristallen bei Ultraschallsendern
US3694260A (en) * 1970-05-21 1972-09-26 James E Beggs Bonded heater,cathode,control electrode structure and method of manufacture
DE2139297A1 (de) * 1971-08-05 1973-02-15 Siemens Ag Verfahren zur herstellung gitterfoermiger, elektrisch leitfaehiger belegungen
US3967150A (en) * 1975-01-31 1976-06-29 Varian Associates Grid controlled electron source and method of making same
NL177338C (nl) * 1975-01-31 1985-09-02 Grasso Koninkl Maschf Roterende verdringingscompressor.
DE2535467C2 (de) * 1975-08-08 1985-06-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Herstellen einer Kathode einer gittergesteuerten Leistungsröhre
US4096406A (en) * 1976-05-10 1978-06-20 Varian Associates, Inc. Thermionic electron source with bonded control grid
FR2390825A1 (fr) * 1977-05-13 1978-12-08 Thomson Csf Cathode thermo-ionique a grille incorporee, son procede de fabrication et tube electronique comportant une telle cathode

Also Published As

Publication number Publication date
EP0038742B1 (fr) 1983-11-23
JPS56167232A (en) 1981-12-22
EP0038742A1 (fr) 1981-10-28
DE3161478D1 (en) 1983-12-29
FR2481000A1 (fr) 1981-10-23
US4459323A (en) 1984-07-10

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse