FR26734E - Improvements to electric shock devices and their method of preparation - Google Patents

Improvements to electric shock devices and their method of preparation

Info

Publication number
FR26734E
FR26734E FR26734DA FR26734E FR 26734 E FR26734 E FR 26734E FR 26734D A FR26734D A FR 26734DA FR 26734 E FR26734 E FR 26734E
Authority
FR
France
Prior art keywords
preparation
electric shock
shock devices
devices
electric
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR26734E publication Critical patent/FR26734E/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/22—Means for obtaining or maintaining the desired pressure within the tube
    • H01J17/24—Means for absorbing or adsorbing gas, e.g. by gettering

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
FR26734D 1921-08-11 1922-08-09 Improvements to electric shock devices and their method of preparation Expired FR26734E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US491634A US1529597A (en) 1921-08-11 1921-08-11 Electron-emitting device and method of preparation

Publications (1)

Publication Number Publication Date
FR26734E true FR26734E (en) 1924-03-06

Family

ID=23953025

Family Applications (1)

Application Number Title Priority Date Filing Date
FR26734D Expired FR26734E (en) 1921-08-11 1922-08-09 Improvements to electric shock devices and their method of preparation

Country Status (4)

Country Link
US (1) US1529597A (en)
DE (1) DE492160C (en)
FR (1) FR26734E (en)
GB (1) GB184446A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2465864A (en) * 1943-06-22 1949-03-29 Westinghouse Electric Corp Automatic carbonization of filaments
US2459792A (en) * 1944-07-08 1949-01-25 Standard Telephones Cables Ltd Beam type electron discharge device
US2513114A (en) * 1944-10-19 1950-06-27 Atomic Energy Commission Liquid air trap
US2693546A (en) * 1948-07-10 1954-11-02 Eitel Mccullough Inc Electron emitter for electron tubes
US3290110A (en) * 1962-12-26 1966-12-06 Rca Corp Processing metal vapor tubes
US3656826A (en) * 1970-07-17 1972-04-18 Westinghouse Electric Corp Method for the preparation and handling of highly oxygen reactant materials

Also Published As

Publication number Publication date
US1529597A (en) 1925-03-10
DE492160C (en) 1930-02-19
GB184446A (en) 1924-01-15

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