FR1073802A - Advanced cathode and manufacturing method - Google Patents

Advanced cathode and manufacturing method

Info

Publication number
FR1073802A
FR1073802A FR1073802DA FR1073802A FR 1073802 A FR1073802 A FR 1073802A FR 1073802D A FR1073802D A FR 1073802DA FR 1073802 A FR1073802 A FR 1073802A
Authority
FR
France
Prior art keywords
manufacturing
advanced cathode
cathode
advanced
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 FR1073802A publication Critical patent/FR1073802A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J1/26—Supports for the emissive material
FR1073802D 1952-04-01 1953-03-27 Advanced cathode and manufacturing method Expired FR1073802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US279888A US2723363A (en) 1952-04-01 1952-04-01 Cathode and method of producing same

Publications (1)

Publication Number Publication Date
FR1073802A true FR1073802A (en) 1954-09-29

Family

ID=23070780

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1073802D Expired FR1073802A (en) 1952-04-01 1953-03-27 Advanced cathode and manufacturing method

Country Status (5)

Country Link
US (1) US2723363A (en)
BE (1) BE518861A (en)
DE (1) DE967715C (en)
FR (1) FR1073802A (en)
GB (1) GB725719A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768321A (en) * 1955-05-02 1956-10-23 Rca Corp Indirectly heated electron emitter for power tubes and the like
NL95320C (en) * 1957-10-04
US3034479A (en) * 1957-10-17 1962-05-15 Larsh Apparatus for flow coating the slots of a slotted stator
DE1080700B (en) * 1958-05-17 1960-04-28 Deutsche Elektronik Gmbh Process for the production of an indirectly heated cathode, in particular for magnetrons with high oscillating power, and cathode produced according to this process
NL272248A (en) * 1960-12-15
GB1004776A (en) * 1961-03-15 1965-09-15 Gen Electric Improvements in cathode construction
DE1133835B (en) * 1961-12-16 1962-07-26 Telefunken Patent Process for the production of an indirectly heated cathode for an electrical discharge tube
US3475161A (en) * 1967-03-14 1969-10-28 Howmet Corp Method of forming cemented carbide coatings on metal surfaces by employing volatile,organic liquid solvents and organic binders
US3958146A (en) * 1974-02-08 1976-05-18 Gte Sylvania Incorporated Fast warm up picture tube cathode cap having high heat emissivity surface on the interior thereof
US3881126A (en) * 1974-03-06 1975-04-29 Gte Sylvania Inc Fast warm-up cathode assembly
USRE32918E (en) * 1983-03-11 1989-05-09 Technion, Inc. Heater/emitter assembly
US4569198A (en) * 1983-03-11 1986-02-11 Technion, Incorporated Heater/emitter assembly
US4730449A (en) * 1983-07-26 1988-03-15 Technion, Inc. Radiation transfer thrusters for low thrust applications
DE19828158C1 (en) * 1998-06-24 1999-11-25 Siemens Ag Indirectly heated cathode, especially for X-ray tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1886705A (en) * 1926-02-06 1932-11-08 Arsene N Lucian Indirect electron excitation for thermionic vacuum tubes
US2115828A (en) * 1935-04-13 1938-05-03 Bell Telephone Labor Inc Electron emitting cathode and method of preparation
DE710283C (en) * 1936-10-03 1941-09-09 Aeg Coating of tantalum carbide on non-emission electrodes of electrical discharge vessels and method for its application
DE715156C (en) * 1937-07-23 1941-12-16 Aeg Method for applying a coating of zirconium and / or niobium carbide or a coating made from an admixture of these carbides to tantalum carbide on electrodes that are not used for emission
US2284655A (en) * 1939-10-26 1942-06-02 Lorenz C Ag Electric discharge tube
NL149363C (en) * 1940-01-24
NL65083C (en) * 1942-02-06
US2438732A (en) * 1947-03-15 1948-03-30 Eitel Mcculough Inc Electron tube cathode

Also Published As

Publication number Publication date
GB725719A (en) 1955-03-09
DE967715C (en) 1957-12-05
BE518861A (en)
US2723363A (en) 1955-11-08

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