FR2179251B1 - - Google Patents

Info

Publication number
FR2179251B1
FR2179251B1 FR7312564A FR7312564A FR2179251B1 FR 2179251 B1 FR2179251 B1 FR 2179251B1 FR 7312564 A FR7312564 A FR 7312564A FR 7312564 A FR7312564 A FR 7312564A FR 2179251 B1 FR2179251 B1 FR 2179251B1
Authority
FR
France
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
FR7312564A
Other languages
French (fr)
Other versions
FR2179251A1 (nl
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of FR2179251A1 publication Critical patent/FR2179251A1/fr
Application granted granted Critical
Publication of FR2179251B1 publication Critical patent/FR2179251B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Solid Thermionic Cathode (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Electrolytic Production Of Metals (AREA)
FR7312564A 1972-04-07 1973-04-06 Expired FR2179251B1 (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00242240A US3852105A (en) 1972-04-07 1972-04-07 Fabrication of dark heaters

Publications (2)

Publication Number Publication Date
FR2179251A1 FR2179251A1 (nl) 1973-11-16
FR2179251B1 true FR2179251B1 (nl) 1978-05-26

Family

ID=22914004

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7312564A Expired FR2179251B1 (nl) 1972-04-07 1973-04-06

Country Status (6)

Country Link
US (1) US3852105A (nl)
JP (1) JPS5331591B2 (nl)
CA (1) CA1014805A (nl)
FR (1) FR2179251B1 (nl)
GB (1) GB1418196A (nl)
NL (1) NL7304824A (nl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1074284A (en) * 1976-06-07 1980-03-25 Ethyl Corporation Chemical process
JPH0622095B2 (ja) * 1985-05-17 1994-03-23 株式会社日立製作所 ダ−クヒ−タの製造方法
GB8611967D0 (en) * 1986-05-16 1986-10-29 English Electric Valve Co Ltd Directly heated cathodes
DE3628363A1 (de) * 1986-08-21 1988-02-25 Mtu Muenchen Gmbh Verfahren zum herstellen von schutzschichten
DE19837007C2 (de) * 1998-08-14 2003-07-03 Siemens Ag Verfahren zur Herstellung eines aus einem Metall gebildeten Bauteils des Vakuumgehäuses einer Elektronenröhre
US20050194374A1 (en) * 2004-03-02 2005-09-08 Applied Materials, Inc. Heated ceramic substrate support with protective coating

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764511A (en) * 1953-08-28 1956-09-25 Sylvania Electric Prod Filamentary cathode and method of making same
US3246197A (en) * 1962-10-02 1966-04-12 Westinghouse Electric Corp Cathode heater having an aluminum oxide and tungesten coating
BE637284A (nl) * 1963-08-29
GB1060942A (en) * 1964-01-27 1967-03-08 Varian Associates Cathode heater assembly and method of making same
US3328201A (en) * 1964-04-27 1967-06-27 Rca Corp Heater for electron tubes
US3401297A (en) * 1965-08-23 1968-09-10 Varian Associates Thermionic cathodes for electron discharge devices with improved refractory metal heater wires

Also Published As

Publication number Publication date
GB1418196A (en) 1975-12-17
JPS5331591B2 (nl) 1978-09-04
US3852105A (en) 1974-12-03
DE2316565B2 (de) 1976-01-15
JPS4917960A (nl) 1974-02-16
CA1014805A (en) 1977-08-02
NL7304824A (nl) 1973-10-09
FR2179251A1 (nl) 1973-11-16
DE2316565A1 (de) 1973-10-18

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Legal Events

Date Code Title Description
TP Transmission of property