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FR979177A - Continuously reactivatable type cathode - Google Patents

Continuously reactivatable type cathode

Info

Publication number
FR979177A
FR979177A FR979177DA FR979177A FR 979177 A FR979177 A FR 979177A FR 979177D A FR979177D A FR 979177DA FR 979177 A FR979177 A FR 979177A
Authority
FR
France
Prior art keywords
continuously
type cathode
reactivatable
reactivatable type
cathode
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
French (fr)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR979177A publication Critical patent/FR979177A/en
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
    • H01J9/04—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
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/027—Construction of the gun or parts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
FR979177D 1948-01-15 1949-01-14 Continuously reactivatable type cathode Expired FR979177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2402A US2499192A (en) 1948-01-15 1948-01-15 Dispenser type cathode

Publications (1)

Publication Number Publication Date
FR979177A true FR979177A (en) 1951-04-23

Family

ID=21700589

Family Applications (1)

Application Number Title Priority Date Filing Date
FR979177D Expired FR979177A (en) 1948-01-15 1949-01-14 Continuously reactivatable type cathode

Country Status (4)

Country Link
US (1) US2499192A (en)
BE (1) BE486753A (en)
FR (1) FR979177A (en)
GB (1) GB685444A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719244A (en) * 1952-01-25 1955-09-27 Westinghouse Electric Corp Electrical discharge tube
NL95281C (en) * 1952-04-09
FR1078606A (en) * 1953-04-02 1954-11-19 Csf Improvements to emissive cathodes
US3113236A (en) * 1959-06-23 1963-12-03 Philips Corp Oxide dispenser type cathode
US3105917A (en) * 1960-02-11 1963-10-01 Philips Corp Electric discharge device comprising an activated cold cathode
DE1217503B (en) * 1964-12-02 1966-05-26 Siemens Ag Storage cathode for electrical discharge vessels
US3405303A (en) * 1964-12-29 1968-10-08 Sylvania Electric Prod Arc discharge tube having an electrode which contains a light-emitting metal
US3706115A (en) * 1971-02-09 1972-12-19 Robert F Bleile Staple for sod and erosion control mattings
US4243624A (en) * 1979-05-21 1981-01-06 Exxon Research & Engineering Co. Method of making cathodes derived from ammonium-metal-chalcogen compounds

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL24414C (en) * 1926-06-09
US1813704A (en) * 1928-06-26 1931-07-07 Westinghouse Lamp Co Cathode
US1946603A (en) * 1929-05-09 1934-02-13 Electrons Inc Cathode for electrical discharge devices
US2007932A (en) * 1930-08-23 1935-07-09 Sirian Lamp Co Surge arrester
US2007926A (en) * 1930-10-21 1935-07-09 Sirian Lamp Co Light emitting unit
US2107945A (en) * 1934-11-20 1938-02-08 Gen Electric Cathode structure
US2175345A (en) * 1935-07-12 1939-10-10 Gen Electric Electric gaseous discharge device

Also Published As

Publication number Publication date
GB685444A (en) 1953-01-07
BE486753A (en)
US2499192A (en) 1950-02-28

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