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ES213564A1 - Cathode coating for electrical discharge devices and method for making the same - Google Patents

Cathode coating for electrical discharge devices and method for making the same

Info

Publication number
ES213564A1
ES213564A1 ES0213564A ES213564A ES213564A1 ES 213564 A1 ES213564 A1 ES 213564A1 ES 0213564 A ES0213564 A ES 0213564A ES 213564 A ES213564 A ES 213564A ES 213564 A1 ES213564 A1 ES 213564A1
Authority
ES
Spain
Prior art keywords
discharge devices
making
same
electrical discharge
cathode coating
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
ES0213564A
Other languages
Spanish (es)
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ES213564A1 publication Critical patent/ES213564A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
    • H01J61/0677—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode characterised by the electron 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

  • Discharge Lamp (AREA)

Abstract

Improvements made to the electron-emitting electrodes for electric discharge devices, preferably for instant-ignition fluorescent lamps, characterized in that they comprise a refractory metal wire provided with a molten coating adhered to it, according to which said coating comprises barium oxide and magnesium oxide, said barium oxide being not less than 81.5% nor greater than 98.5% by weight of said coating. (Machine-translation by Google Translate, not legally binding)
ES0213564A 1953-02-09 1954-02-08 Cathode coating for electrical discharge devices and method for making the same Expired ES213564A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US335908A US2724070A (en) 1953-02-09 1953-02-09 Cathode coating for electrical discharge devices and method for making the same

Publications (1)

Publication Number Publication Date
ES213564A1 true ES213564A1 (en) 1954-06-16

Family

ID=23313727

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0213564A Expired ES213564A1 (en) 1953-02-09 1954-02-08 Cathode coating for electrical discharge devices and method for making the same

Country Status (6)

Country Link
US (1) US2724070A (en)
BE (1) BE526330A (en)
DE (1) DE967713C (en)
ES (1) ES213564A1 (en)
FR (1) FR1095943A (en)
GB (1) GB739367A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858470A (en) * 1955-02-02 1958-10-28 Bell Telephone Labor Inc Cathode for electron discharge devices
NL100356C (en) * 1955-05-10
US2963450A (en) * 1958-03-17 1960-12-06 Interlectric Corp Filament coating composition
FR1482073A (en) * 1966-03-21 1967-05-26 Commissariat Energie Atomique Electrically conductive ceramic material and its preparation process
GB1178052A (en) * 1966-04-20 1970-01-14 Matsushita Electronics Corp A Noiseless Discharge Tube
GB1178051A (en) * 1966-04-20 1970-01-14 Matsushita Electronics Corp Noiseless Discharge Tube
US3953376A (en) * 1974-07-10 1976-04-27 International Telephone And Telegraph Corporation Method for preparing emissive coating for electrodes
US4031426A (en) * 1974-07-10 1977-06-21 International Telephone And Telegraph Corporation Emissive coating for electrodes
US3951874A (en) * 1974-07-10 1976-04-20 International Telephone And Telegraph Corporation Method for preparing electron emissive coatings
US4251569A (en) * 1975-10-22 1981-02-17 Gte Products Corporation Method of coating arc discharge lamp electrode
US4210839A (en) * 1978-03-13 1980-07-01 Westron of Canada Limited Mercury lamp for promoting plant growth
US5744905A (en) * 1994-12-23 1998-04-28 Philips Electronics North America Corporation Emission materials for discharge lamps and method for manufacturing electrode structures with such materials
US20120104930A1 (en) * 2010-11-03 2012-05-03 General Electric Company Core-shell electron emission material

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1453267A (en) * 1918-11-29 1923-05-01 Forest Radio Telephone & Teleg Electron-emitting cathode and method of making the same
BE335031A (en) * 1926-06-14
DE600129C (en) * 1926-07-11 1934-07-14 Osram G M B H Komm Ges Oxide cathode
DE597580C (en) * 1928-05-01 1934-05-26 Osram G M B H Komm Ges Electric light or ultraviolet radiation tubes
US1830825A (en) * 1928-11-20 1931-11-10 Kemet Lab Co Inc Cathode
DE627520C (en) * 1929-05-05 1936-03-17 Osram G M B H Komm Ges Electric discharge tubes of any filling with glow electrodes and discharge through the positive column
US2018993A (en) * 1930-06-03 1935-10-29 Sirian Lamp Co Electrical discharge material and method of manufacturing it
US2266662A (en) * 1931-11-21 1941-12-16 Gen Electric Discharge device
NL41599C (en) * 1934-10-27
BE440175A (en) * 1936-09-03
GB624009A (en) * 1942-11-14 1949-05-26 Philips Nv Improvements in or relating to electric discharge tubes
US2476590A (en) * 1943-07-03 1949-07-19 Westinghouse Electric Corp Cathode coating
BE482916A (en) * 1947-06-05
US2542352A (en) * 1947-06-10 1951-02-20 Gen Electric Lead wire for fluorescent lamps

Also Published As

Publication number Publication date
GB739367A (en) 1955-10-26
FR1095943A (en) 1955-06-07
DE967713C (en) 1957-12-05
US2724070A (en) 1955-11-15
BE526330A (en)

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