FR792096A - Lampe à vapeur - Google Patents

Lampe à vapeur

Info

Publication number
FR792096A
FR792096A FR792096DA FR792096A FR 792096 A FR792096 A FR 792096A FR 792096D A FR792096D A FR 792096DA FR 792096 A FR792096 A FR 792096A
Authority
FR
France
Prior art keywords
steam lamp
steam
lamp
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
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.)
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 FR792096A publication Critical patent/FR792096A/fr
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
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium
FR792096D 1934-07-07 1935-07-06 Lampe à vapeur Expired FR792096A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US734090A US2025585A (en) 1934-07-07 1934-07-07 Method of operating vapor electric lamps

Publications (1)

Publication Number Publication Date
FR792096A true FR792096A (fr) 1935-12-21

Family

ID=24950274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR792096D Expired FR792096A (fr) 1934-07-07 1935-07-06 Lampe à vapeur

Country Status (3)

Country Link
US (1) US2025585A (fr)
FR (1) FR792096A (fr)
GB (1) GB444934A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4093893A (en) * 1976-11-22 1978-06-06 General Electric Company Short arc fluorescent lamp
US4427919A (en) 1980-07-30 1984-01-24 Grenfell Julian P Mercury holder for electric discharge lamps
GB8712665D0 (en) * 1987-05-29 1987-07-01 Osram Gec Ltd Low pressure sodium lamps

Also Published As

Publication number Publication date
GB444934A (en) 1936-03-31
US2025585A (en) 1935-12-24

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