FR936339A - Manufacturing process of cathodes for discharge tubes - Google Patents

Manufacturing process of cathodes for discharge tubes

Info

Publication number
FR936339A
FR936339A FR936339DA FR936339A FR 936339 A FR936339 A FR 936339A FR 936339D A FR936339D A FR 936339DA FR 936339 A FR936339 A FR 936339A
Authority
FR
France
Prior art keywords
cathodes
manufacturing process
discharge tubes
tubes
discharge
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 FR936339A publication Critical patent/FR936339A/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
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Physical Vapour Deposition (AREA)
FR936339D 1944-11-04 1946-11-27 Manufacturing process of cathodes for discharge tubes Expired FR936339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE258433X 1944-11-04

Publications (1)

Publication Number Publication Date
FR936339A true FR936339A (en) 1948-07-16

Family

ID=3866700

Family Applications (1)

Application Number Title Priority Date Filing Date
FR936339D Expired FR936339A (en) 1944-11-04 1946-11-27 Manufacturing process of cathodes for discharge tubes

Country Status (5)

Country Link
US (1) US2453753A (en)
BE (1) BE457760A (en)
CH (1) CH258433A (en)
DE (1) DE803919C (en)
FR (1) FR936339A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL203172A (en) * 1954-12-31
NL101810C (en) * 1955-02-12
US2750528A (en) * 1955-02-17 1956-06-12 Sylvania Electric Prod Electronic tube element protective coating

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB255090A (en) * 1925-07-13 1927-06-09 Gen Electric Improvements in or relating to methods of manufacturing electrodes for electron discharge devices
US1936334A (en) * 1929-01-31 1933-11-21 Gen Scientific Corp Electrode
US1936419A (en) * 1930-06-03 1933-11-21 Gen Electric Photo-electric tube

Also Published As

Publication number Publication date
BE457760A (en)
US2453753A (en) 1948-11-16
CH258433A (en) 1948-11-30
DE803919C (en) 1951-04-12

Similar Documents

Publication Publication Date Title
FR939367A (en) Manufacturing process of electronic discharge devices
FR928312A (en) Cathodes for electron tubes
FR936339A (en) Manufacturing process of cathodes for discharge tubes
FR941179A (en) Manufacturing process for secondary polyhydroxyalkylaryl amines
FR936338A (en) Method of manufacturing the cathode of a discharge tube
FR970402A (en) Manufacturing process of discharge tubes
FR920711A (en) New tube manufacturing process
FR913598A (en) Manufacturing process of micro-porous materials
FR914529A (en) Process for the production of pleated tubes
FR912516A (en) Process for the manufacture of yarns
FR901154A (en) Process for the production of clad tubes
FR989697A (en) Manufacturing process of pemmican
FR947541A (en) Process and machine for the manufacture of flexible metal tubes of rectangular section
FR969076A (en) Manufacturing process of electric quartz discharge tubes
FR952558A (en) Process for manufacturing oxide cathodes for discharge tubes and cathodes thus obtained
FR911802A (en) Manufacturing process of chloracolein
FR992663A (en) Process for the manufacture of glass
FR935518A (en) surface coated electrode for electron tubes and method for its manufacture
FR909126A (en) Process for the production of ointments
FR53314E (en) Process for the production of metal moldings
FR901197A (en) Method of manufacturing a discharge tube
FR841922A (en) Manufacturing process of electric discharge tubes
FR53390E (en) Process for the manufacture of siliceous bricks
FR904947A (en) Process and cell for the manufacture by electrolysis of chlorine and caustic alkalis
FR915426A (en) Advanced process for manufacturing cathode ray tubes