FR1185981A - Method and device for applying a layer of emissive substances to the cathode bodies of thermionic cathodes with indirect heating - Google Patents

Method and device for applying a layer of emissive substances to the cathode bodies of thermionic cathodes with indirect heating

Info

Publication number
FR1185981A
FR1185981A FR1185981DA FR1185981A FR 1185981 A FR1185981 A FR 1185981A FR 1185981D A FR1185981D A FR 1185981DA FR 1185981 A FR1185981 A FR 1185981A
Authority
FR
France
Prior art keywords
applying
layer
indirect heating
thermionic cathodes
cathode bodies
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.)
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 FR1185981A publication Critical patent/FR1185981A/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
    • H01J9/06—Machines therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
FR1185981D 1956-11-14 1957-11-12 Method and device for applying a layer of emissive substances to the cathode bodies of thermionic cathodes with indirect heating Expired FR1185981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP17388A DE1053673B (en) 1956-11-14 1956-11-14 Method for applying the emission layer to the layer support of indirectly heated glow cathodes of electrical discharge tubes and device for carrying out the method

Publications (1)

Publication Number Publication Date
FR1185981A true FR1185981A (en) 1959-08-11

Family

ID=7366513

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1185981D Expired FR1185981A (en) 1956-11-14 1957-11-12 Method and device for applying a layer of emissive substances to the cathode bodies of thermionic cathodes with indirect heating

Country Status (6)

Country Link
BE (1) BE562310A (en)
CH (1) CH360441A (en)
DE (1) DE1053673B (en)
FR (1) FR1185981A (en)
GB (1) GB823900A (en)
NL (1) NL99689C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010128A1 (en) * 1978-08-31 1980-04-30 Siemens Aktiengesellschaft Directly heated cathode for an electron tube with coaxial electrode structure and method of making such a cathode

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090333B (en) * 1959-04-06 1960-10-06 Siemens Ag Process for applying emission paste to tubular cathode shells of indirectly heated cathodes and device for carrying out the process
US3157588A (en) * 1960-12-14 1964-11-17 Sylvania Electric Prod Electrophoretic coating apparatus
US3219571A (en) * 1961-03-14 1965-11-23 Sylvania Electric Prod Electrophoretic coating apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE887547C (en) * 1943-01-08 1953-08-24 Telefunken Gmbh Method and device for applying emission paste to tubular emission layer carriers of indirectly heated glow cathodes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010128A1 (en) * 1978-08-31 1980-04-30 Siemens Aktiengesellschaft Directly heated cathode for an electron tube with coaxial electrode structure and method of making such a cathode

Also Published As

Publication number Publication date
DE1053673B (en) 1959-03-26
NL99689C (en) 1900-01-01
CH360441A (en) 1962-02-28
BE562310A (en)
GB823900A (en) 1959-11-18

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