FR2439474A1 - Procede de preparation de grilles en graphite pyrolytique de tube electronique, grille preparee suivant ce procede, et tube electronique comportant une telle grille - Google Patents

Procede de preparation de grilles en graphite pyrolytique de tube electronique, grille preparee suivant ce procede, et tube electronique comportant une telle grille

Info

Publication number
FR2439474A1
FR2439474A1 FR7829922A FR7829922A FR2439474A1 FR 2439474 A1 FR2439474 A1 FR 2439474A1 FR 7829922 A FR7829922 A FR 7829922A FR 7829922 A FR7829922 A FR 7829922A FR 2439474 A1 FR2439474 A1 FR 2439474A1
Authority
FR
France
Prior art keywords
grid
base
secured
tube
metal ring
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.)
Granted
Application number
FR7829922A
Other languages
English (en)
Other versions
FR2439474B1 (fr
Inventor
Pierre Gerlach
Roger Hoet
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
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7829922A priority Critical patent/FR2439474A1/fr
Publication of FR2439474A1 publication Critical patent/FR2439474A1/fr
Application granted granted Critical
Publication of FR2439474B1 publication Critical patent/FR2439474B1/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
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Lift Valve (AREA)

Abstract

L'INVENTION CONCERNE UN PROCEDE DE PREPARATION DES GRILLES EN GRAPHITE PYROLYTIQUE DE TUBE ELECTRONIQUE. AFIN DE PERMETTRE LE MONTAGE DE LA GRILLE 1 SUR L'EMBASE DU TUBE, PAR VISSAGE, BRASAGE OU SOUDAGE, UN ANNEAU DE METAL 3, PUR OU ALLIE, NON MISCIBLE AVEC LE GRAPHITE, EST COULE DANS LA GOUTTIERE 2.1 DU MOULE 2 DANS LEQUEL EST PLACEE L'EMBASE 1.1 DE LA GRILLE 1. CELLE-CI COMPORTE, EN PLUS DES FENTES DE DILATATION 1.2, DES ZONES DE PERFORATIONS 1.3, QUI ASSURENT L'ACCROCHAGE DU METAL. APPLICATION, NOTAMMENT AUX GRILLES DES TRIODES ET TETRODES DE GRANDE PUISSANCE POUR EMETTEURS DE RADIODIFFUSION.
FR7829922A 1978-10-20 1978-10-20 Procede de preparation de grilles en graphite pyrolytique de tube electronique, grille preparee suivant ce procede, et tube electronique comportant une telle grille Granted FR2439474A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7829922A FR2439474A1 (fr) 1978-10-20 1978-10-20 Procede de preparation de grilles en graphite pyrolytique de tube electronique, grille preparee suivant ce procede, et tube electronique comportant une telle grille

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7829922A FR2439474A1 (fr) 1978-10-20 1978-10-20 Procede de preparation de grilles en graphite pyrolytique de tube electronique, grille preparee suivant ce procede, et tube electronique comportant une telle grille

Publications (2)

Publication Number Publication Date
FR2439474A1 true FR2439474A1 (fr) 1980-05-16
FR2439474B1 FR2439474B1 (fr) 1982-09-03

Family

ID=9213985

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7829922A Granted FR2439474A1 (fr) 1978-10-20 1978-10-20 Procede de preparation de grilles en graphite pyrolytique de tube electronique, grille preparee suivant ce procede, et tube electronique comportant une telle grille

Country Status (1)

Country Link
FR (1) FR2439474A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518801A1 (fr) * 1981-12-18 1983-06-24 Thomson Csf Grille en graphite pyrolytique munie d'un support de fixation et son procede de realisation
US4739213A (en) * 1985-01-28 1988-04-19 Spitters Antonius M M Electron tube with support for pyrolytic graphite electrode

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2057395A5 (en) * 1969-08-18 1971-05-21 Thomson Csf Electrode for high power thermionic valve
FR2250195A1 (fr) * 1973-11-07 1975-05-30 Bbc Brown Boveri & Cie
FR2280967A1 (fr) * 1974-08-03 1976-02-27 English Electric Valve Co Ltd Grille de graphite pyrolytique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2057395A5 (en) * 1969-08-18 1971-05-21 Thomson Csf Electrode for high power thermionic valve
FR2250195A1 (fr) * 1973-11-07 1975-05-30 Bbc Brown Boveri & Cie
FR2280967A1 (fr) * 1974-08-03 1976-02-27 English Electric Valve Co Ltd Grille de graphite pyrolytique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518801A1 (fr) * 1981-12-18 1983-06-24 Thomson Csf Grille en graphite pyrolytique munie d'un support de fixation et son procede de realisation
US4739213A (en) * 1985-01-28 1988-04-19 Spitters Antonius M M Electron tube with support for pyrolytic graphite electrode

Also Published As

Publication number Publication date
FR2439474B1 (fr) 1982-09-03

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Legal Events

Date Code Title Description
ST Notification of lapse