NL251846A - - Google Patents

Info

Publication number
NL251846A
NL251846A NL251846DA NL251846A NL 251846 A NL251846 A NL 251846A NL 251846D A NL251846D A NL 251846DA NL 251846 A NL251846 A NL 251846A
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 NL251846A publication Critical patent/NL251846A/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
    • H01J41/12—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
NL251846D 1959-05-25 NL251846A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US815351A US3107044A (en) 1959-05-25 1959-05-25 Cold-cathode discharge ion pump

Publications (1)

Publication Number Publication Date
NL251846A true NL251846A (enrdf_load_stackoverflow)

Family

ID=25217539

Family Applications (1)

Application Number Title Priority Date Filing Date
NL251846D NL251846A (enrdf_load_stackoverflow) 1959-05-25

Country Status (4)

Country Link
US (1) US3107044A (enrdf_load_stackoverflow)
DE (1) DE1845497U (enrdf_load_stackoverflow)
GB (1) GB897599A (enrdf_load_stackoverflow)
NL (1) NL251846A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391303A (en) * 1965-01-25 1968-07-02 Lewis D. Hall Electronic vacuum pump including a sputter electrode
US3443742A (en) * 1967-06-09 1969-05-13 Itt Pumping device
US5240381A (en) * 1990-08-03 1993-08-31 Ebara Corporation Exhaust apparatus and vacuum pumping unit including the exhaust apparatus
US20070286738A1 (en) * 2006-06-12 2007-12-13 Varian, Inc. Vacuum ion-getter pump with cryogenically cooled cathode

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046249B (de) * 1956-04-05 1958-12-11 Dr Gerhard Fricke Verfahren und Vorrichtung zur Erzeugung eines hohen Vakuums

Also Published As

Publication number Publication date
US3107044A (en) 1963-10-15
GB897599A (en) 1962-05-30
DE1845497U (de) 1962-01-25

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