GB898115A - Improvements in and relating to incandescent electric lamps - Google Patents

Improvements in and relating to incandescent electric lamps

Info

Publication number
GB898115A
GB898115A GB2532/61A GB253261A GB898115A GB 898115 A GB898115 A GB 898115A GB 2532/61 A GB2532/61 A GB 2532/61A GB 253261 A GB253261 A GB 253261A GB 898115 A GB898115 A GB 898115A
Authority
GB
United Kingdom
Prior art keywords
filament
carbide
incandescent electric
relating
lamp
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
GB2532/61A
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.)
Union Carbide Corp
Original Assignee
Union Carbide 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
Priority claimed from US5524A external-priority patent/US3022436A/en
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB898115A publication Critical patent/GB898115A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/04—Incandescent bodies characterised by the material thereof
    • H01K1/10—Bodies of metal or carbon combined with other substance
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Chemical Vapour Deposition (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Luminescent Compositions (AREA)

Abstract

An incandescent electric lamp comprises a filament of tantalum carbide together with a carbide of zirconium, hafnium, titanium, thorium, vanadium, mobium, molybdenum, tungsten or uranium in an oxygen free atmosphere of hydrogen and volatilized carbon. A halogen and an inert gas may also be present. The filament may be formed in situ by constructing the lamp with a filament of an alloy of the metals to be used, e.g. tungsten and tantalum, sealing the lamp after incorporating the constituents of the atmosphere and then converting the filament to carbide by the passage of a current to yield a filament temperature of 3100 DEG C.
GB2532/61A 1960-01-29 1961-01-23 Improvements in and relating to incandescent electric lamps Expired GB898115A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5525A US3022437A (en) 1960-01-29 1960-01-29 Electric lamps
US5524A US3022436A (en) 1960-01-29 1960-01-29 Electric lamps

Publications (1)

Publication Number Publication Date
GB898115A true GB898115A (en) 1962-06-06

Family

ID=26674458

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2532/61A Expired GB898115A (en) 1960-01-29 1961-01-23 Improvements in and relating to incandescent electric lamps

Country Status (6)

Country Link
US (1) US3022437A (en)
BE (1) BE599574A (en)
DE (1) DE1912565U (en)
FR (1) FR1280917A (en)
GB (1) GB898115A (en)
NL (1) NL260575A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732455A (en) * 1970-03-03 1973-05-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Halogen incandescent lamp
WO2004107391A1 (en) * 2003-05-27 2004-12-09 Ip2H Ag Light source and method for supplying a transport function to a chemical element in a light source
WO2006007815A1 (en) * 2004-07-19 2006-01-26 Patent-Treuhand-- Gesellschaft Für Elektrische Glühlampen Mbh Light bulb comprising an illumination body that contains carbide
WO2006007816A2 (en) * 2004-07-19 2006-01-26 Ip2H Ag Light source and method for mechanically stabilizing the filament or electrode of a light source
WO2006007814A1 (en) * 2004-07-19 2006-01-26 Patent-Treuhand- Gesellschaft Für Elektrische Glühlampen Mhb Light bulb containing an illumination body that contains carbide
WO2007125075A2 (en) * 2006-05-03 2007-11-08 Osram Gesellschaft mit beschränkter Haftung Halogen incandescent lamp having a carbide-containing luminous element

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237284A (en) * 1962-02-05 1966-03-01 Polaroid Corp Method of forming carbide coated coiled filaments for lamps
GB1047302A (en) * 1963-03-28
US3331982A (en) * 1964-10-20 1967-07-18 Sylvania Electric Prod High pressure electric discharge device having a fill including vanadium
US4032809A (en) * 1966-03-21 1977-06-28 Westinghouse Electric Corporation Tantalum carbide or tantalum-alloy carbide filament mounting and method
US3441777A (en) * 1966-06-01 1969-04-29 Gen Telephone & Elect Elements for incandescent devices
GB1467634A (en) * 1973-05-19 1977-03-16 Lucas Electrical Ltd Road vehicle electrical systems
US3983513A (en) * 1973-10-18 1976-09-28 Westinghouse Electric Corporation Incandescent lamp having a halogen-containing atmosphere and an integral reflector of non-reactive specular metal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1366452A (en) * 1914-06-03 1921-01-25 Heimrod George William Vapor rectifier for high-potential currents
US1655488A (en) * 1925-03-18 1928-01-10 Gen Electric Electric incandescent lamp
US2072788A (en) * 1935-06-15 1937-03-02 Mary Andrews Westendorp Tantalum carbide lamp
US2596469A (en) * 1951-02-27 1952-05-13 Polaroid Corp Tantalum carbide filament electric lamp containing hydrogen-volatile hydrocarbon mixture

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732455A (en) * 1970-03-03 1973-05-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Halogen incandescent lamp
WO2004107391A1 (en) * 2003-05-27 2004-12-09 Ip2H Ag Light source and method for supplying a transport function to a chemical element in a light source
WO2006007815A1 (en) * 2004-07-19 2006-01-26 Patent-Treuhand-- Gesellschaft Für Elektrische Glühlampen Mbh Light bulb comprising an illumination body that contains carbide
WO2006007816A2 (en) * 2004-07-19 2006-01-26 Ip2H Ag Light source and method for mechanically stabilizing the filament or electrode of a light source
WO2006007814A1 (en) * 2004-07-19 2006-01-26 Patent-Treuhand- Gesellschaft Für Elektrische Glühlampen Mhb Light bulb containing an illumination body that contains carbide
WO2006007816A3 (en) * 2004-07-19 2006-08-03 Ip2H Ag Light source and method for mechanically stabilizing the filament or electrode of a light source
WO2007125075A2 (en) * 2006-05-03 2007-11-08 Osram Gesellschaft mit beschränkter Haftung Halogen incandescent lamp having a carbide-containing luminous element
WO2007125075A3 (en) * 2006-05-03 2008-07-31 Osram Gmbh Halogen incandescent lamp having a carbide-containing luminous element

Also Published As

Publication number Publication date
DE1912565U (en) 1965-03-25
BE599574A (en) 1961-05-16
NL260575A (en)
FR1280917A (en) 1962-01-08
US3022437A (en) 1962-02-20

Similar Documents

Publication Publication Date Title
GB898115A (en) Improvements in and relating to incandescent electric lamps
GB1527903A (en) High pressure metal halide lamps
GB985602A (en) Method of minimising hydrogen pick-up in titanium and titanium alloys, particularly in electrical generators
GB1377309A (en) Lamp and reflector assembly
GB953210A (en) An electric intermediate pressure gas discharge lamp
GB947281A (en) Improvements in or relating to thermionic converters
US1749780A (en) Incandescent-cathode device
GB944827A (en) Incandescent lamp
GB1457670A (en) Nuclear reactor fuel rod thermal simulator
GB396103A (en) Improvements in or relating to vacuum-tight seals for current leads into quartz or refractory glass vessels
GB985174A (en) Preparation of cermets
GB1260021A (en) Heating device
GB950916A (en) Method of manufacturing a sintered tungsten member
GB767879A (en) Temperature, oxidation and corrosion resisting material and method of making the same
GB917787A (en) Improvements in or relating to electric incandescent filament lamps
US2913298A (en) Cold and hollow electrode
GB928620A (en) Manufacture of tungsten-molybdenum alloy
ES484177A1 (en) Electric lamp
GB860563A (en) Improved method of surface treatment for non-ferrous bodies
ES281314A1 (en) Improvements introduced in the manufacture of incandescent lamps (Machine-translation by Google Translate, not legally binding)
GB976944A (en) Improvements in or relating to electric incandescent lamps
ES252622A1 (en) Improvements introduced in the manufacture of electric lamps incandescent (Machine-translation by Google Translate, not legally binding)
GB613779A (en) Improvements in electrodes for use in electron tubes
GB1385097A (en) Tungsten halogen lamp
GB864447A (en) Cast molybdenum alloys