GB673237A - Improvements in and relating to oxide-coated cathodes - Google Patents

Improvements in and relating to oxide-coated cathodes

Info

Publication number
GB673237A
GB673237A GB6554/50A GB655450A GB673237A GB 673237 A GB673237 A GB 673237A GB 6554/50 A GB6554/50 A GB 6554/50A GB 655450 A GB655450 A GB 655450A GB 673237 A GB673237 A GB 673237A
Authority
GB
United Kingdom
Prior art keywords
oxide
relating
coated cathodes
per cent
cathodes
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.)
Expired
Application number
GB6554/50A
Other languages
English (en)
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of GB673237A publication Critical patent/GB673237A/en
Expired legal-status Critical Current

Links

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
    • H01J1/146—Solid thermionic cathodes characterised by the material with metals or alloys as an emissive 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2958—Metal or metal compound in coating

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
GB6554/50A 1949-03-17 1950-03-15 Improvements in and relating to oxide-coated cathodes Expired GB673237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81854A US2639996A (en) 1949-03-17 1949-03-17 Filamentary cathode

Publications (1)

Publication Number Publication Date
GB673237A true GB673237A (en) 1952-06-04

Family

ID=22166827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6554/50A Expired GB673237A (en) 1949-03-17 1950-03-15 Improvements in and relating to oxide-coated cathodes

Country Status (3)

Country Link
US (1) US2639996A (OSRAM)
GB (1) GB673237A (OSRAM)
NL (1) NL78158C (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111446140A (zh) * 2020-04-27 2020-07-24 中国科学院国家空间科学中心 一种用于空间探测仪器的阴极及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103267A (en) * 1926-11-20 1937-12-28 Rca Corp Alloy for vacuum tube elements
US1925978A (en) * 1931-02-04 1933-09-05 Kemet Lab Co Inc Alloy and article composed of same
US2003609A (en) * 1932-08-26 1935-06-04 Electrons Inc Preparation of composite substances
US2041802A (en) * 1933-06-30 1936-05-26 Bell Telephone Labor Inc Electron emitter
US2085605A (en) * 1934-05-11 1937-06-29 Gen Electric Thermionic cathode for electric discharge devices
US2049372A (en) * 1934-11-19 1936-07-28 Gen Electric Emissive coating for cathodes and method for preparing the same
US2081864A (en) * 1934-11-24 1937-05-25 Electrons Inc Of Delaware Emissive cathode
US2185410A (en) * 1938-09-30 1940-01-02 Rca Corp Metal compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111446140A (zh) * 2020-04-27 2020-07-24 中国科学院国家空间科学中心 一种用于空间探测仪器的阴极及其制备方法

Also Published As

Publication number Publication date
NL78158C (OSRAM)
US2639996A (en) 1953-05-26

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