BE569642A - - Google Patents

Info

Publication number
BE569642A
BE569642A BE569642DA BE569642A BE 569642 A BE569642 A BE 569642A BE 569642D A BE569642D A BE 569642DA BE 569642 A BE569642 A BE 569642A
Authority
BE
Belgium
Application number
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.)
Publication of BE569642A publication Critical patent/BE569642A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
    • H01J41/06—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of cold cathodes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F9/00—Diffusion pumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/42—Means structurally associated with the tube or lamp for indicating defects or previous use
    • 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
    • H01J9/42—Measurement or testing during manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)
BE569642D 1957-07-26 BE569642A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1082698X 1957-07-26

Publications (1)

Publication Number Publication Date
BE569642A true BE569642A (xx)

Family

ID=9610811

Family Applications (1)

Application Number Title Priority Date Filing Date
BE569642D BE569642A (xx) 1957-07-26

Country Status (3)

Country Link
BE (1) BE569642A (xx)
DE (1) DE1082698B (xx)
LU (1) LU36278A1 (xx)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE442834C (de) * 1922-09-09 1927-04-08 Bbc Brown Boveri & Cie Verfahren zum selbsttaetigen Betrieb der Entlueftungseinrichtung von Quecksilberdampfgleichrichtern
DE650178C (de) * 1935-08-25 1937-09-15 Patra Patent Treuhand Entlueftungseinrichtung mit Vor- und Hochvakuumpumpe
US2442518A (en) * 1945-03-31 1948-06-01 Gen Electric Electric control circuit

Also Published As

Publication number Publication date
DE1082698B (de) 1960-06-02
LU36278A1 (xx)

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