ES461278A1 - Dispenser cathode - Google Patents

Dispenser cathode

Info

Publication number
ES461278A1
ES461278A1 ES461278A ES461278A ES461278A1 ES 461278 A1 ES461278 A1 ES 461278A1 ES 461278 A ES461278 A ES 461278A ES 461278 A ES461278 A ES 461278A ES 461278 A1 ES461278 A1 ES 461278A1
Authority
ES
Spain
Prior art keywords
carrier
molded
dispenser cathode
throat
impregnated
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
ES461278A
Other languages
Spanish (es)
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
Publication of ES461278A1 publication Critical patent/ES461278A1/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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/04—Cathodes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Powder Metallurgy (AREA)

Abstract

A method of manufacturing an emitting cathode in which a molded, impregnated and sintered part is embedded in a carrier, characterized in that the carrier is formed around the molded part in such a manner that any throat or gap between the part molded and the side wall of the carrier has a width less than 10 um, the carrier being manufactured from a metal sheet having a thickness of 10 to 100 um. (Machine-translation by Google Translate, not legally binding)
ES461278A 1976-08-04 1977-08-02 Dispenser cathode Expired ES461278A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7608642A NL7608642A (en) 1976-08-04 1976-08-04 PROCESS FOR MANUFACTURE OF A STOCK CATHOD AND STOCK CATHOD MANUFACTURED UNDER THAT PROCESS.

Publications (1)

Publication Number Publication Date
ES461278A1 true ES461278A1 (en) 1978-05-01

Family

ID=19826692

Family Applications (1)

Application Number Title Priority Date Filing Date
ES461278A Expired ES461278A1 (en) 1976-08-04 1977-08-02 Dispenser cathode

Country Status (13)

Country Link
JP (1) JPS5328365A (en)
BE (1) BE857406A (en)
BR (1) BR7705042A (en)
CA (1) CA1091291A (en)
DD (1) DD130604A5 (en)
DE (1) DE2733342C2 (en)
ES (1) ES461278A1 (en)
FI (1) FI772335A (en)
FR (1) FR2360983A1 (en)
GB (1) GB1583585A (en)
IT (1) IT1086053B (en)
NL (1) NL7608642A (en)
PL (1) PL123760B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7905542A (en) * 1979-07-17 1981-01-20 Philips Nv DELIVERY CATHOD.
NL8105921A (en) * 1981-12-31 1983-07-18 Philips Nv TELEVISION ROOM TUBE.
DE3336489A1 (en) * 1983-10-07 1985-04-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Indirectly heated dispenser cathode

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL222412A (en) * 1956-12-15
NL112717C (en) * 1959-01-22
US3160780A (en) * 1961-01-17 1964-12-08 Philips Corp Indirectly heated cathode
NL6602973A (en) * 1966-03-08 1967-09-11
DE1764260A1 (en) * 1968-05-04 1971-07-01 Telefunken Patent Method for manufacturing a supply cathode

Also Published As

Publication number Publication date
DD130604A5 (en) 1978-04-12
GB1583585A (en) 1981-01-28
BR7705042A (en) 1978-06-06
JPS617697B2 (en) 1986-03-08
IT1086053B (en) 1985-05-28
CA1091291A (en) 1980-12-09
PL199999A1 (en) 1978-03-28
FR2360983A1 (en) 1978-03-03
PL123760B1 (en) 1982-11-30
FI772335A (en) 1978-02-05
DE2733342A1 (en) 1978-02-09
DE2733342C2 (en) 1986-05-15
FR2360983B1 (en) 1980-07-18
BE857406A (en) 1978-02-02
JPS5328365A (en) 1978-03-16
NL7608642A (en) 1978-02-07

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971103