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FR1302189A - Pompe à vide perfectionnée - Google Patents

Pompe à vide perfectionnée

Info

Publication number
FR1302189A
FR1302189A FR874583A FR874583A FR1302189A FR 1302189 A FR1302189 A FR 1302189A FR 874583 A FR874583 A FR 874583A FR 874583 A FR874583 A FR 874583A FR 1302189 A FR1302189 A FR 1302189A
Authority
FR
France
Prior art keywords
vacuum pump
advanced vacuum
advanced
pump
vacuum
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
FR874583A
Other languages
English (en)
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 US60156A external-priority patent/US3084848A/en
Application filed by Varian Associates Inc filed Critical Varian Associates Inc
Priority to FR874583A priority Critical patent/FR1302189A/fr
Application granted granted Critical
Publication of FR1302189A publication Critical patent/FR1302189A/fr
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
    • 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
FR874583A 1960-10-03 1961-09-29 Pompe à vide perfectionnée Expired FR1302189A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR874583A FR1302189A (fr) 1960-10-03 1961-09-29 Pompe à vide perfectionnée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60156A US3084848A (en) 1960-10-03 1960-10-03 Improved vacuum pumps
FR874583A FR1302189A (fr) 1960-10-03 1961-09-29 Pompe à vide perfectionnée

Publications (1)

Publication Number Publication Date
FR1302189A true FR1302189A (fr) 1962-08-24

Family

ID=26192495

Family Applications (1)

Application Number Title Priority Date Filing Date
FR874583A Expired FR1302189A (fr) 1960-10-03 1961-09-29 Pompe à vide perfectionnée

Country Status (1)

Country Link
FR (1) FR1302189A (fr)

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