FR812808A - Improvements to discharge tubes - Google Patents

Improvements to discharge tubes

Info

Publication number
FR812808A
FR812808A FR812808DA FR812808A FR 812808 A FR812808 A FR 812808A FR 812808D A FR812808D A FR 812808DA FR 812808 A FR812808 A FR 812808A
Authority
FR
France
Prior art keywords
discharge tubes
tubes
discharge
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 Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR812808A publication Critical patent/FR812808A/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
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
FR812808D 1935-11-01 1936-10-31 Improvements to discharge tubes Expired FR812808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30264/35A GB465137A (en) 1935-11-01 1935-11-01 Improvements in and relating to electric discharge lamps

Publications (1)

Publication Number Publication Date
FR812808A true FR812808A (en) 1937-05-19

Family

ID=10304885

Family Applications (1)

Application Number Title Priority Date Filing Date
FR812808D Expired FR812808A (en) 1935-11-01 1936-10-31 Improvements to discharge tubes

Country Status (3)

Country Link
US (1) US2087754A (en)
FR (1) FR812808A (en)
GB (1) GB465137A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3275879A (en) * 1961-07-31 1966-09-27 Ohmega Lab Capsulated bulb and method of making the same
US3983385A (en) * 1974-08-23 1976-09-28 Union Carbide Corporation Method and apparatus for operating a mercury vapor lamp
USB534443I5 (en) * 1974-12-19 1976-01-27
JPS61263040A (en) * 1985-05-16 1986-11-21 Ushio Inc Dc discharge lamp

Also Published As

Publication number Publication date
US2087754A (en) 1937-07-20
GB465137A (en) 1937-05-03

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