CH325999A - Hot cathode for electron tubes - Google Patents

Hot cathode for electron tubes

Info

Publication number
CH325999A
CH325999A CH325999DA CH325999A CH 325999 A CH325999 A CH 325999A CH 325999D A CH325999D A CH 325999DA CH 325999 A CH325999 A CH 325999A
Authority
CH
Switzerland
Prior art keywords
hot cathode
electron tubes
tubes
electron
cathode
Prior art date
Application number
Other languages
German (de)
Inventor
Gysbert Jacob Dr Phil Ekkers
Patriarca Aldo
Original Assignee
Patelhold Patentverwertung
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 Patelhold Patentverwertung filed Critical Patelhold Patentverwertung
Publication of CH325999A publication Critical patent/CH325999A/en

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
    • H01J9/042—Manufacture, activation of the emissive part
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12993—Surface feature [e.g., rough, mirror]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
CH325999D 1954-12-17 1954-12-17 Hot cathode for electron tubes CH325999A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2887413X 1954-12-17

Publications (1)

Publication Number Publication Date
CH325999A true CH325999A (en) 1957-11-30

Family

ID=4572553

Family Applications (1)

Application Number Title Priority Date Filing Date
CH325999D CH325999A (en) 1954-12-17 1954-12-17 Hot cathode for electron tubes

Country Status (3)

Country Link
US (1) US2887413A (en)
CH (1) CH325999A (en)
NL (2) NL90199C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998376A (en) * 1956-10-29 1961-08-29 Temescal Metallurgical Corp High-vacuum evaporator
US3082516A (en) * 1957-12-03 1963-03-26 Union Carbide Corp Fabrication of metal shapes
US3075066A (en) * 1957-12-03 1963-01-22 Union Carbide Corp Article of manufacture and method of making same
US3066048A (en) * 1960-03-01 1962-11-27 Janina J Mitchell Process of making mixed oxide films
US3766423A (en) * 1971-12-03 1973-10-16 Itt Integral emissive electrode
US4404234A (en) * 1981-12-23 1983-09-13 Bell Telephone Laboratories, Incorporated Electrode coating process
US4407849A (en) * 1981-12-23 1983-10-04 Bell Telephone Laboratories, Incorporated Process for improving electrode coatings
US5327050A (en) * 1986-07-04 1994-07-05 Canon Kabushiki Kaisha Electron emitting device and process for producing the same
USRE40062E1 (en) 1987-07-15 2008-02-12 Canon Kabushiki Kaisha Display device with electron-emitting device with electron-emitting region insulated from electrodes
USRE39633E1 (en) 1987-07-15 2007-05-15 Canon Kabushiki Kaisha Display device with electron-emitting device with electron-emitting region insulated from electrodes
USRE40566E1 (en) 1987-07-15 2008-11-11 Canon Kabushiki Kaisha Flat panel display including electron emitting device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1926846A (en) * 1931-08-15 1933-09-12 Cutler Hammer Inc Electrode for electron discharge devices
US2147447A (en) * 1936-09-21 1939-02-14 Siemens Ag Glow cathode
US2556254A (en) * 1947-05-15 1951-06-12 Rca Corp Voltage reference tube
NL70766C (en) * 1948-02-25
US2677071A (en) * 1948-06-30 1954-04-27 Rca Corp Voltage reference tube

Also Published As

Publication number Publication date
NL90199C (en)
NL193708A (en)
US2887413A (en) 1959-05-19

Similar Documents

Publication Publication Date Title
CH325999A (en) Hot cathode for electron tubes
CH325279A (en) electron microscope
CH336912A (en) High performance x-ray tube
CH336507A (en) Double electron tube
CH360442A (en) Electron-optical system for cathode ray tubes
CH340912A (en) Electron tube
FR1137688A (en) Advanced cathode
FR1099285A (en) Cathode ray tube
CH323748A (en) Anode for X-ray tubes
CH340915A (en) Electron tube
AT199761B (en) Hot cathode for electron tubes
FR1144236A (en) Ceramic-cased electron tubes
FR1128091A (en) Tube assemblies
FR1144770A (en) Cathode ray tube
AT197503B (en) Double electron tube
FR1180296A (en) Hot cathode for electron tubes
FR1137650A (en) Advanced cathode
AT180108B (en) Electron tube for microwaves
FR1127404A (en) Cathode ray tubes
FR1132011A (en) Double ceramic-cased electron tubes
AT192459B (en) Beam generation system for cathode ray tubes
FR68850E (en) Tube assemblies
FR61489E (en) Sequential discharge electron tubes
FR66096E (en) Sequential discharge electron tubes
FR66927E (en) Sequential discharge electron tubes