GB657027A - Improvements in or relating to the manufacture of electron discharge devices - Google Patents

Improvements in or relating to the manufacture of electron discharge devices

Info

Publication number
GB657027A
GB657027A GB358448A GB358448A GB657027A GB 657027 A GB657027 A GB 657027A GB 358448 A GB358448 A GB 358448A GB 358448 A GB358448 A GB 358448A GB 657027 A GB657027 A GB 657027A
Authority
GB
United Kingdom
Prior art keywords
electron discharge
relating
manufacture
discharge devices
gas
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
GB358448A
Inventor
Gilbert Harold Metson
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.)
HIS MAJESTY S POSTMASTER GENER
Original Assignee
HIS MAJESTY S POSTMASTER GENER
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 HIS MAJESTY S POSTMASTER GENER filed Critical HIS MAJESTY S POSTMASTER GENER
Priority to GB358448A priority Critical patent/GB657027A/en
Publication of GB657027A publication Critical patent/GB657027A/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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

657,027. Electron discharge apparatus. POSTMASTER GENERAL. Feb. 6, 1948, No. 3584. [Class 39 (i)] The argon content of the residual gas remaining after evacuation in an electron discharge device having an oxide-coated cathode is further reduced by flushing the envelope with a gas having no deleterious effects on the electrodes, e.g. carbon dioxide, and evacuating again. The process may be repeated, and the remaining traces of flushing gas are finally cleaned up by gettering.
GB358448A 1948-02-06 1948-02-06 Improvements in or relating to the manufacture of electron discharge devices Expired GB657027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB358448A GB657027A (en) 1948-02-06 1948-02-06 Improvements in or relating to the manufacture of electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB358448A GB657027A (en) 1948-02-06 1948-02-06 Improvements in or relating to the manufacture of electron discharge devices

Publications (1)

Publication Number Publication Date
GB657027A true GB657027A (en) 1951-09-05

Family

ID=9761104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB358448A Expired GB657027A (en) 1948-02-06 1948-02-06 Improvements in or relating to the manufacture of electron discharge devices

Country Status (1)

Country Link
GB (1) GB657027A (en)

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