FR2117650A5 - - Google Patents

Info

Publication number
FR2117650A5
FR2117650A5 FR7144461A FR7144461A FR2117650A5 FR 2117650 A5 FR2117650 A5 FR 2117650A5 FR 7144461 A FR7144461 A FR 7144461A FR 7144461 A FR7144461 A FR 7144461A FR 2117650 A5 FR2117650 A5 FR 2117650A5
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
FR7144461A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR2117650A5 publication Critical patent/FR2117650A5/fr
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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
FR7144461A 1970-12-10 1971-12-10 Expired FR2117650A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7018001A NL7018001A (enrdf_load_stackoverflow) 1970-12-10 1970-12-10

Publications (1)

Publication Number Publication Date
FR2117650A5 true FR2117650A5 (enrdf_load_stackoverflow) 1972-07-21

Family

ID=19811756

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7144461A Expired FR2117650A5 (enrdf_load_stackoverflow) 1970-12-10 1971-12-10

Country Status (6)

Country Link
US (1) US3753025A (enrdf_load_stackoverflow)
CA (1) CA934431A (enrdf_load_stackoverflow)
DE (1) DE2157768A1 (enrdf_load_stackoverflow)
FR (1) FR2117650A5 (enrdf_load_stackoverflow)
GB (1) GB1327975A (enrdf_load_stackoverflow)
NL (1) NL7018001A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1582837A (en) * 1976-07-10 1981-01-14 Emi Varian Ltd Electron emitter
US4379979A (en) * 1981-02-06 1983-04-12 The United States Of America As Represented By The Secretary Of The Navy Controlled porosity sheet for thermionic dispenser cathode and method of manufacture
US5118983A (en) * 1989-03-24 1992-06-02 Mitsubishi Denki Kabushiki Kaisha Thermionic electron source
US5350969A (en) * 1991-12-03 1994-09-27 Litton Systems, Inc. Cathode heater and cathode assembly for microwave power tubes
KR950006088B1 (ko) * 1992-06-27 1995-06-08 주식회사엘지전자 함침형 음극 구조체의 함침 펠렛트 및 그 제조방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE890390C (de) * 1951-07-12 1953-09-17 Siemens Ag Kathode fuer elektrische Entladungsgefaesse
US3117249A (en) * 1960-02-16 1964-01-07 Sperry Rand Corp Embedded heater cathode
FR1489050A (fr) * 1966-03-22 1967-07-21 Commissariat Energie Atomique électrode composite pour tuyère de conversion magnétohydrodynamique

Also Published As

Publication number Publication date
DE2157768A1 (de) 1972-06-29
US3753025A (en) 1973-08-14
GB1327975A (en) 1973-08-22
NL7018001A (enrdf_load_stackoverflow) 1972-06-13
CA934431A (en) 1973-09-25

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Legal Events

Date Code Title Description
ST Notification of lapse