FR2140518A1 - - Google Patents

Info

Publication number
FR2140518A1
FR2140518A1 FR7220444A FR7220444A FR2140518A1 FR 2140518 A1 FR2140518 A1 FR 2140518A1 FR 7220444 A FR7220444 A FR 7220444A FR 7220444 A FR7220444 A FR 7220444A FR 2140518 A1 FR2140518 A1 FR 2140518A1
Authority
FR
France
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.)
Granted
Application number
FR7220444A
Other languages
French (fr)
Other versions
FR2140518B1 (https=
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries Inc
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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of FR2140518A1 publication Critical patent/FR2140518A1/fr
Application granted granted Critical
Publication of FR2140518B1 publication Critical patent/FR2140518B1/fr
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
    • H01J9/022—Manufacture of electrodes or electrode systems of cold 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
    • H01J9/042—Manufacture, activation of the emissive part
    • H01J9/045—Activation of assembled cathode

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Discharge Lamp (AREA)
FR7220444A 1971-06-07 1972-06-07 Expired FR2140518B1 (https=)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15031071A 1971-06-07 1971-06-07
US20039871A 1971-11-19 1971-11-19

Publications (2)

Publication Number Publication Date
FR2140518A1 true FR2140518A1 (https=) 1973-01-19
FR2140518B1 FR2140518B1 (https=) 1978-03-03

Family

ID=26847526

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7220444A Expired FR2140518B1 (https=) 1971-06-07 1972-06-07

Country Status (6)

Country Link
BE (1) BE784489A (https=)
CA (1) CA958068A (https=)
DE (1) DE2226433A1 (https=)
FR (1) FR2140518B1 (https=)
GB (1) GB1394370A (https=)
NL (1) NL7207673A (https=)

Also Published As

Publication number Publication date
CA958068A (en) 1974-11-19
GB1394370A (en) 1975-05-14
BE784489A (nl) 1972-12-07
FR2140518B1 (https=) 1978-03-03
DE2226433A1 (de) 1972-12-28
NL7207673A (https=) 1972-12-11

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Legal Events

Date Code Title Description
ST Notification of lapse