DE1070740B - - Google Patents

Info

Publication number
DE1070740B
DE1070740B DENDAT1070740D DE1070740DA DE1070740B DE 1070740 B DE1070740 B DE 1070740B DE NDAT1070740 D DENDAT1070740 D DE NDAT1070740D DE 1070740D A DE1070740D A DE 1070740DA DE 1070740 B DE1070740 B DE 1070740B
Authority
DE
Germany
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.)
Pending
Application number
DENDAT1070740D
Other languages
German (de)
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.)
Publication of DE1070740B publication Critical patent/DE1070740B/de
Pending legal-status Critical Current

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
    • 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
    • H01J9/08—Manufacture of heaters for indirectly-heated cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/02—Manufacture of incandescent bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Lasers (AREA)
  • Powder Metallurgy (AREA)
DENDAT1070740D 1954-12-03 Pending DE1070740B (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35096/54A GB798945A (en) 1954-12-03 1954-12-03 Improvements in or relating to electric discharge devices

Publications (1)

Publication Number Publication Date
DE1070740B true DE1070740B (ja)

Family

ID=10373771

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT1070740D Pending DE1070740B (ja) 1954-12-03

Country Status (4)

Country Link
US (1) US2881104A (ja)
DE (1) DE1070740B (ja)
GB (1) GB798945A (ja)
NL (2) NL202520A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1189647B (de) * 1960-06-17 1965-03-25 Egyesuelt Izzolampa Verfahren zur Herstellung abgeflachter Gluehlampenwendel, insbesondere fuer Projektionslampen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530010A (en) * 1968-07-22 1970-09-22 Research Corp Method of making blazed optical diffraction gratings
HU207907B (en) * 1987-10-22 1993-06-28 Tungsram Reszvenytarsasag Apparatus for continuous heat treating tungsten spiral filaments on molibdenum core

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2165310A (en) * 1939-07-11 Filament
US1738960A (en) * 1926-03-30 1929-12-10 Mutscheller Arthur Vacuum discharge device and method of using the same
US2069081A (en) * 1932-05-31 1937-01-26 Gen Electric Electric incandescent lamp
US2047555A (en) * 1933-05-31 1936-07-14 Parsons & Co Ltd C A Manufacture of hollow turbine blades
US2482826A (en) * 1945-08-04 1949-09-27 Tung Sol Lamp Works Inc Filament structure for thermionic tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1189647B (de) * 1960-06-17 1965-03-25 Egyesuelt Izzolampa Verfahren zur Herstellung abgeflachter Gluehlampenwendel, insbesondere fuer Projektionslampen

Also Published As

Publication number Publication date
NL96915C (ja)
GB798945A (en) 1958-07-30
NL202520A (ja)
US2881104A (en) 1959-04-07

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