DE1063718B - AEquipotentialkathode mit einer abgeschliffenen Oberflaeche fuer eine elektrische Entladungsroehre - Google Patents

AEquipotentialkathode mit einer abgeschliffenen Oberflaeche fuer eine elektrische Entladungsroehre

Info

Publication number
DE1063718B
DE1063718B DEN15644A DEN0015644A DE1063718B DE 1063718 B DE1063718 B DE 1063718B DE N15644 A DEN15644 A DE N15644A DE N0015644 A DEN0015644 A DE N0015644A DE 1063718 B DE1063718 B DE 1063718B
Authority
DE
Germany
Prior art keywords
cathode
cylinder
tungsten
wire
thorium
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.)
Pending
Application number
DEN15644A
Other languages
German (de)
English (en)
Inventor
Hans Georg Gerlach
Eduard Gerhardus Dorgelo
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 DE1063718B publication Critical patent/DE1063718B/de
Pending 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
    • 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
    • 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
    • H01J1/15—Cathodes heated directly by an electric current
    • 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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape
    • 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
    • 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)
DEN15644A 1957-10-04 1958-09-30 AEquipotentialkathode mit einer abgeschliffenen Oberflaeche fuer eine elektrische Entladungsroehre Pending DE1063718B (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL221344 1957-10-04
NL225825 1958-03-13

Publications (1)

Publication Number Publication Date
DE1063718B true DE1063718B (de) 1959-08-20

Family

ID=26641626

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN15644A Pending DE1063718B (de) 1957-10-04 1958-09-30 AEquipotentialkathode mit einer abgeschliffenen Oberflaeche fuer eine elektrische Entladungsroehre

Country Status (7)

Country Link
US (1) US2949557A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE571711A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH366905A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1063718B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1204038A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB829339A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL95320C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169039B (de) 1959-09-03 1964-04-30 Ass Elect Ind Indirekt geheizte Kathode mit einem isolierten, um einen federnd gespannten Draht gewickelten Heizdraht
DE1180468B (de) * 1961-04-21 1964-10-29 Siemens Elektrogeraete Gmbh Garraum eines HF-Strahlungsherdes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318716A (en) * 1962-09-11 1967-05-09 Pennsalt Chemicals Corp Foam reduction and coating
NL272248A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1960-12-15

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB582162A (en) * 1940-03-13 1946-11-07 M O Valve Co Ltd Improvements in thermionic valves adapted to operate at very high frequencies

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526054A (en) * 1940-03-13 1950-10-17 M O Valve Co Ltd Electrode assembly for very highfrequency electron discharge devices
BE518861A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1952-04-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB582162A (en) * 1940-03-13 1946-11-07 M O Valve Co Ltd Improvements in thermionic valves adapted to operate at very high frequencies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169039B (de) 1959-09-03 1964-04-30 Ass Elect Ind Indirekt geheizte Kathode mit einem isolierten, um einen federnd gespannten Draht gewickelten Heizdraht
DE1180468B (de) * 1961-04-21 1964-10-29 Siemens Elektrogeraete Gmbh Garraum eines HF-Strahlungsherdes

Also Published As

Publication number Publication date
GB829339A (en) 1960-03-02
BE571711A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL95320C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US2949557A (en) 1960-08-16
FR1204038A (fr) 1960-01-22
CH366905A (de) 1963-01-31

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