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
  • H01J1/14—Solid thermionic cathodes characterised by the material
• • 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)
• Fats And Perfumes (AREA)
• Solid Thermionic Cathode (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19783587

Family Applications (1)

Country Status (5)

Families Citing this family (5)

• 0
  • NL NL23762D patent/NL23762C/xx active
  • BE BE359097D patent/BE359097A/xx unknown
• 1929
  • 1929-03-18 FR FR671657D patent/FR671657A/fr not_active Expired
  • 1929-03-18 GB GB8714/29A patent/GB309578A/en not_active Expired
  • 1929-04-04 US US352597A patent/US1821359A/en not_active Expired - Lifetime

Also Published As

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