NL290849A - - Google Patents

Info

Publication number
NL290849A
NL290849A NL290849DA NL290849A NL 290849 A NL290849 A NL 290849A NL 290849D A NL290849D A NL 290849DA NL 290849 A NL290849 A NL 290849A
Authority
NL
Netherlands
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 NL290849A publication Critical patent/NL290849A/xx
Priority claimed from US183440A external-priority patent/US3181028A/en

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
    • 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
NL290849D 1962-03-29 NL290849A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US183440A US3181028A (en) 1962-03-29 1962-03-29 Ion transport vacuum pump

Publications (1)

Publication Number Publication Date
NL290849A true NL290849A (fr)

Family

ID=22672800

Family Applications (1)

Application Number Title Priority Date Filing Date
NL290849D NL290849A (fr) 1962-03-29

Country Status (5)

Country Link
BE (1) BE630302A (fr)
CH (1) CH439571A (fr)
DE (1) DE1231844B (fr)
GB (1) GB1031766A (fr)
NL (1) NL290849A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008011686A1 (de) 2008-02-28 2009-09-03 Inficon Gmbh Heliumsensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1246669A (fr) * 1959-02-17 1960-11-18 Whitehall Rand Inc Pompe à fluides

Also Published As

Publication number Publication date
BE630302A (fr)
CH439571A (de) 1967-07-15
DE1231844B (de) 1967-01-05
GB1031766A (en) 1966-06-02

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