FR584843A - Improvements to vacuum devices and the means to produce them - Google Patents

Improvements to vacuum devices and the means to produce them

Info

Publication number
FR584843A
FR584843A FR584843DA FR584843A FR 584843 A FR584843 A FR 584843A FR 584843D A FR584843D A FR 584843DA FR 584843 A FR584843 A FR 584843A
Authority
FR
France
Prior art keywords
produce
vacuum devices
vacuum
devices
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.)
Westinghouse Lamp Co
Original Assignee
Westinghouse Lamp Co
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 Westinghouse Lamp Co filed Critical Westinghouse Lamp Co
Application granted granted Critical
Publication of FR584843A publication Critical patent/FR584843A/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
FR584843D 1924-08-21 1924-08-21 Improvements to vacuum devices and the means to produce them Expired FR584843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR584843T 1924-08-21

Publications (1)

Publication Number Publication Date
FR584843A true FR584843A (en) 1925-02-14

Family

ID=8959592

Family Applications (1)

Application Number Title Priority Date Filing Date
FR584843D Expired FR584843A (en) 1924-08-21 1924-08-21 Improvements to vacuum devices and the means to produce them

Country Status (1)

Country Link
FR (1) FR584843A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112937609A (en) * 2021-02-08 2021-06-11 陆盛宏 Method for chemically making closed system obtain approximate vacuum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112937609A (en) * 2021-02-08 2021-06-11 陆盛宏 Method for chemically making closed system obtain approximate vacuum

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