GB191312272A - Improvements relating to the Production of a Vacuum by Means of Low Temperatures. - Google Patents

Improvements relating to the Production of a Vacuum by Means of Low Temperatures.

Info

Publication number
GB191312272A
GB191312272A GB191312272DA GB191312272A GB 191312272 A GB191312272 A GB 191312272A GB 191312272D A GB191312272D A GB 191312272DA GB 191312272 A GB191312272 A GB 191312272A
Authority
GB
United Kingdom
Prior art keywords
vacuum
production
low temperatures
improvements relating
carbon
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
Inventor
Julius Edgar Lilienfeld
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191312272A publication Critical patent/GB191312272A/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
    • H01J9/385—Exhausting vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Resistance Heating (AREA)

Abstract

12,272. Lilienfeld, J. E. Aug. 9, 1912, [Convention date]. Residual gases.-In producing a vacuum in metallic-filament lamps by means of low temperatures, for example by immersing them in liquefied hydrogen or connecting them to a similarly cooled vessel, any hydrogen in the bulb is removed in the form of a condensable compound by introducing a suitable gas and effecting the combination of the gases by heating the filaments. Oxygen and carbon-dioxide are given as examples of a suitable gas, the carbon-dioxide snow formed in the latter case facilitating the production of the vacuum by an absorptive action.
GB191312272D 1912-08-06 1913-05-26 Improvements relating to the Production of a Vacuum by Means of Low Temperatures. Expired GB191312272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE191312272X 1912-08-06

Publications (1)

Publication Number Publication Date
GB191312272A true GB191312272A (en) 1913-11-27

Family

ID=32337484

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191312272D Expired GB191312272A (en) 1912-08-06 1913-05-26 Improvements relating to the Production of a Vacuum by Means of Low Temperatures.

Country Status (1)

Country Link
GB (1) GB191312272A (en)

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