FR1258683A - Vacuum pump - Google Patents

Vacuum pump

Info

Publication number
FR1258683A
FR1258683A FR828970A FR828970A FR1258683A FR 1258683 A FR1258683 A FR 1258683A FR 828970 A FR828970 A FR 828970A FR 828970 A FR828970 A FR 828970A FR 1258683 A FR1258683 A FR 1258683A
Authority
FR
France
Prior art keywords
vacuum pump
vacuum
pump
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
FR828970A
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.)
Ultek Corp
Original Assignee
Ultek Corp
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 US820373A external-priority patent/US3070283A/en
Application filed by Ultek Corp filed Critical Ultek Corp
Priority to FR828970A priority Critical patent/FR1258683A/en
Application granted granted Critical
Publication of FR1258683A publication Critical patent/FR1258683A/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
    • 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
FR828970A 1959-06-15 1960-06-02 Vacuum pump Expired FR1258683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR828970A FR1258683A (en) 1959-06-15 1960-06-02 Vacuum pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US820373A US3070283A (en) 1959-06-15 1959-06-15 Vacuum pump
FR828970A FR1258683A (en) 1959-06-15 1960-06-02 Vacuum pump

Publications (1)

Publication Number Publication Date
FR1258683A true FR1258683A (en) 1961-04-14

Family

ID=26186247

Family Applications (1)

Application Number Title Priority Date Filing Date
FR828970A Expired FR1258683A (en) 1959-06-15 1960-06-02 Vacuum pump

Country Status (1)

Country Link
FR (1) FR1258683A (en)

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