CH314200A - Oxide cathode for electric discharge tubes - Google Patents

Oxide cathode for electric discharge tubes

Info

Publication number: CH314200A
Authority: CH; Switzerland
Prior art keywords: electric discharge; discharge tubes; oxide cathode; cathode; oxide
Prior art date: 1949-05-11

Application number

Other languages

German (de)

Inventor

Ernoe Dipl Ing Winter

Mihaly Dipl Ing Szekely

Original Assignee

Egyesuelt Izzolampa

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.)

1949-05-11

Filing date

1953-01-26

Publication date

1956-05-31

1953-01-26 Application filed by Egyesuelt Izzolampa filed Critical Egyesuelt Izzolampa

1956-05-31 Publication of CH314200A publication Critical patent/CH314200A/en

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
- H01J1/14—Solid thermionic cathodes characterised by the material
- 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
- H01J9/042—Manufacture, activation of the emissive part

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Chemical Or Physical Treatment Of Fibers (AREA)
Solid Thermionic Cathode (AREA)
Cosmetics (AREA)

CH314200D 1949-05-11 1953-01-26 Oxide cathode for electric discharge tubes CH314200A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
HU281264X		1949-05-11

Publications (1)

Publication Number	Publication Date
CH314200A true CH314200A (en)	1956-05-31

Family

ID=10978688

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
CH281264D CH281264A (en)	1949-05-11	1949-12-13	Oxide cathode and process for their manufacture.
CH314200D CH314200A (en)	1949-05-11	1953-01-26	Oxide cathode for electric discharge tubes

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
CH281264D CH281264A (en)	1949-05-11	1949-12-13	Oxide cathode and process for their manufacture.

Country Status (4)

Country	Link
CH (2)	CH281264A (en)
FR (2)	FR1008217A (en)
GB (1)	GB673438A (en)
NL (3)	NL175814B (en)

0
- NL NL95833D patent/NL95833C/xx active
- NL NL89857D patent/NL89857C/xx active
- NL NLAANVRAGE7706385,A patent/NL175814B/en unknown
1949
- 1949-12-13 CH CH281264D patent/CH281264A/en unknown
1950
- 1950-01-11 FR FR1008217D patent/FR1008217A/en not_active Expired
- 1950-04-13 GB GB9129/50A patent/GB673438A/en not_active Expired
1953
- 1953-01-26 CH CH314200D patent/CH314200A/en unknown
- 1953-01-30 FR FR63699D patent/FR63699E/en not_active Expired

Also Published As

Publication number	Publication date
NL95833C (en)
CH281264A (en)	1952-02-29
NL175814B (en)
NL89857C (en)
FR1008217A (en)	1952-05-15
FR63699E (en)	1955-09-30
GB673438A (en)	1952-06-04

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