NL229703A - - Google Patents

Info

Publication number
NL229703A
NL229703A NL229703A NL229703A NL229703A NL 229703 A NL229703 A NL 229703A NL 229703 A NL229703 A NL 229703A NL 229703 A NL229703 A NL 229703A NL 229703 A NL229703 A NL 229703A
Authority
NL
Netherlands
Application number
NL229703A
Other languages
Dutch (nl)
Original Assignee
Varian Associates
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
Priority claimed from US673816A external-priority patent/US2993638A/en
Application filed by Varian Associates filed Critical Varian Associates
Priority claimed from US801186A external-priority patent/US3088657A/en
Publication of NL229703A publication Critical patent/NL229703A/nl

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
    • H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
    • H01J41/18—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes
    • H01J41/20—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes using gettering substances
NL229703A 1957-07-24 1958-07-18 NL229703A (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US673816A US2993638A (en) 1957-07-24 1957-07-24 Electrical vacuum pump apparatus and method
US801186A US3088657A (en) 1959-03-23 1959-03-23 Glow discharge vacuum pump apparatus

Publications (1)

Publication Number Publication Date
NL229703A true NL229703A (enrdf_load_stackoverflow) 1965-06-25

Family

ID=27101017

Family Applications (2)

Application Number Title Priority Date Filing Date
NL229703A NL229703A (enrdf_load_stackoverflow) 1957-07-24 1958-07-18
NL6504257A NL131436C (nl) 1957-07-24 1965-04-02 Ionen-vacuümpomp

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL6504257A NL131436C (nl) 1957-07-24 1965-04-02 Ionen-vacuümpomp

Country Status (3)

Country Link
DE (1) DE1181364B (enrdf_load_stackoverflow)
GB (2) GB883190A (enrdf_load_stackoverflow)
NL (2) NL229703A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
GB942546A (en) 1963-11-27
NL6504257A (nl) 1965-06-25
NL131436C (nl) 1971-05-17
DE1181364B (de) 1964-11-12
GB883190A (en) 1961-11-22

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