FR568540A - Mercury vapor device - Google Patents

Mercury vapor device

Info

Publication number
FR568540A
FR568540A FR568540DA FR568540A FR 568540 A FR568540 A FR 568540A FR 568540D A FR568540D A FR 568540DA FR 568540 A FR568540 A FR 568540A
Authority
FR
France
Prior art keywords
mercury vapor
vapor device
mercury
vapor
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR568540A publication Critical patent/FR568540A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/26—Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
FR568540D 1922-07-11 1923-07-10 Mercury vapor device Expired FR568540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US574239A US1560936A (en) 1922-07-11 1922-07-11 Mercury-vapor device

Publications (1)

Publication Number Publication Date
FR568540A true FR568540A (en) 1924-03-28

Family

ID=24295267

Family Applications (1)

Application Number Title Priority Date Filing Date
FR568540D Expired FR568540A (en) 1922-07-11 1923-07-10 Mercury vapor device

Country Status (2)

Country Link
US (1) US1560936A (en)
FR (1) FR568540A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707247A (en) * 1951-06-05 1955-04-26 Hanovia Chemical & Mfg Co Vapor electric discharge lamp

Also Published As

Publication number Publication date
US1560936A (en) 1925-11-10

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