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 grilleInfo
- 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
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.
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)
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)
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 |
-
1978
- 1978-10-20 FR FR7829922A patent/FR2439474A1/fr active Granted
Patent Citations (3)
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)
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 |