FR819612A - Process for creating a high vacuum in a closed ampoule - Google Patents

Process for creating a high vacuum in a closed ampoule

Info

Publication number
FR819612A
FR819612A FR819612DA FR819612A FR 819612 A FR819612 A FR 819612A FR 819612D A FR819612D A FR 819612DA FR 819612 A FR819612 A FR 819612A
Authority
FR
France
Prior art keywords
creating
high vacuum
closed ampoule
ampoule
closed
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.)
Kemet Electronics Corp
Original Assignee
Kemet Laboratories Co 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
Application filed by Kemet Laboratories Co Inc filed Critical Kemet Laboratories Co Inc
Application granted granted Critical
Publication of FR819612A publication Critical patent/FR819612A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/186—Getter supports
FR819612D 1936-05-08 1937-03-22 Process for creating a high vacuum in a closed ampoule Expired FR819612A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US492529XA 1936-05-08 1936-05-08

Publications (1)

Publication Number Publication Date
FR819612A true FR819612A (en) 1937-10-22

Family

ID=21958841

Family Applications (1)

Application Number Title Priority Date Filing Date
FR819612D Expired FR819612A (en) 1936-05-08 1937-03-22 Process for creating a high vacuum in a closed ampoule

Country Status (3)

Country Link
FR (1) FR819612A (en)
GB (1) GB492529A (en)
NL (1) NL54193C (en)

Also Published As

Publication number Publication date
GB492529A (en) 1938-09-19
NL54193C (en) 1943-04-15

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