FR637133A - Perfectionnements aux cathodes thermioniques - Google Patents

Perfectionnements aux cathodes thermioniques

Info

Publication number
FR637133A
FR637133A FR637133DA FR637133A FR 637133 A FR637133 A FR 637133A FR 637133D A FR637133D A FR 637133DA FR 637133 A FR637133 A FR 637133A
Authority
FR
France
Prior art keywords
thermionic cathodes
thermionic
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
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Application granted granted Critical
Publication of FR637133A publication Critical patent/FR637133A/fr
Expired 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
    • H01J9/08—Manufacture of heaters for indirectly-heated cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Microwave Tubes (AREA)
  • Resistance Heating (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
FR637133D 1926-07-07 1927-07-06 Perfectionnements aux cathodes thermioniques Expired FR637133A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17046/26A GB278787A (en) 1926-07-07 1926-07-07 Improvements in or relating to thermionic cathodes

Publications (1)

Publication Number Publication Date
FR637133A true FR637133A (fr) 1928-04-24

Family

ID=10088278

Family Applications (1)

Application Number Title Priority Date Filing Date
FR637133D Expired FR637133A (fr) 1926-07-07 1927-07-06 Perfectionnements aux cathodes thermioniques

Country Status (6)

Country Link
US (1) US2075910A (fr)
AT (1) AT110360B (fr)
DE (1) DE583836C (fr)
FR (1) FR637133A (fr)
GB (1) GB278787A (fr)
NL (1) NL33511C (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609590A (en) * 1952-09-09 Method of manufacturing a
DE745678C (de) * 1932-01-17 1944-11-30 Indirekt geheizte Kathode fuer Braunsche Roehren
DE760248C (de) * 1933-11-08 1953-10-19 Georg Seibt Nachf Dr Indirekt geheizte Kathode fuer Kathodenstrahlroehren
DE741396C (de) * 1937-07-17 1943-11-10 Sueddeutsche Telefon App Kabel Verfahren zur Herstellung von isolierten gewendelten Heizdraehten fuer indirekt geheizte Kathoden
US2543439A (en) * 1945-05-02 1951-02-27 Edward A Coomes Method of manufacturing coated elements for electron tubes
NL69250C (fr) * 1946-03-05
US2632083A (en) * 1950-12-01 1953-03-17 Luz E Shaffer Thermostatically heated limit switch
US2900554A (en) * 1951-06-01 1959-08-18 Rca Corp Sleeve for indirectly heated cathode
BE514762A (fr) * 1951-10-11
US2711390A (en) * 1952-11-18 1955-06-21 Sylvania Electric Prod Method of making composite thermionically emissive cathode material
DE1099086B (de) * 1954-03-31 1961-02-09 Siemens Ag Verfahren zur Herstellung einer Isolierschicht fuer Heizer von mittelbar geheizten Kathoden
US2932759A (en) * 1954-07-21 1960-04-12 Univ Minnesota Vacuum tube
US3066042A (en) * 1959-11-27 1962-11-27 Engelhard Ind Inc Method of coating metal
US3206329A (en) * 1962-01-08 1965-09-14 Gen Electric Insulation coating for indirectly heated cathode heaters
US3175118A (en) * 1962-05-28 1965-03-23 Gen Electric Low power heater
US3581144A (en) * 1969-03-27 1971-05-25 Gen Electric Metal-clad insulated electrical heater

Also Published As

Publication number Publication date
NL33511C (fr)
DE583836C (de) 1933-09-18
GB278787A (en) 1927-10-07
US2075910A (en) 1937-04-06
AT110360B (de) 1928-08-10

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