FR945733A - Vacuum pump for very low pressures using the ionization of gas molecules - Google Patents

Vacuum pump for very low pressures using the ionization of gas molecules

Info

Publication number
FR945733A
FR945733A FR945733DA FR945733A FR 945733 A FR945733 A FR 945733A FR 945733D A FR945733D A FR 945733DA FR 945733 A FR945733 A FR 945733A
Authority
FR
France
Prior art keywords
ionization
vacuum pump
gas molecules
low pressures
pressures
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
Other languages
French (fr)
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.)
Radiotechnique SA
Original Assignee
Radiotechnique SA
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 Radiotechnique SA filed Critical Radiotechnique SA
Application granted granted Critical
Publication of FR945733A publication Critical patent/FR945733A/en
Expired legal-status Critical Current

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
FR945733D 1947-04-11 1947-04-11 Vacuum pump for very low pressures using the ionization of gas molecules Expired FR945733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR945733T 1947-04-11

Publications (1)

Publication Number Publication Date
FR945733A true FR945733A (en) 1949-05-12

Family

ID=9472469

Family Applications (1)

Application Number Title Priority Date Filing Date
FR945733D Expired FR945733A (en) 1947-04-11 1947-04-11 Vacuum pump for very low pressures using the ionization of gas molecules

Country Status (1)

Country Link
FR (1) FR945733A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999016162A1 (en) * 1997-09-25 1999-04-01 Caliper Technologies Corporation Micropump

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999016162A1 (en) * 1997-09-25 1999-04-01 Caliper Technologies Corporation Micropump
US6012902A (en) * 1997-09-25 2000-01-11 Caliper Technologies Corp. Micropump
US6171067B1 (en) 1997-09-25 2001-01-09 Caliper Technologies Corp. Micropump
AU746335B2 (en) * 1997-09-25 2002-04-18 Caliper Life Sciences, Inc. Micropump
US6394759B1 (en) 1997-09-25 2002-05-28 Caliper Technologies Corp. Micropump
US6568910B1 (en) 1997-09-25 2003-05-27 Caliper Technologies Corp. Micropump

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