FR518074A - Improvements in the manufacture of lamps - Google Patents

Improvements in the manufacture of lamps

Info

Publication number
FR518074A
FR518074A FR518074A FR518074DA FR518074A FR 518074 A FR518074 A FR 518074A FR 518074 A FR518074 A FR 518074A FR 518074D A FR518074D A FR 518074DA FR 518074 A FR518074 A FR 518074A
Authority
FR
France
Prior art keywords
lamps
manufacture
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
FR518074A
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 FR518074A publication Critical patent/FR518074A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/20—Seals between parts of vessels
    • H01J5/22—Vacuum-tight joints between parts of vessel
    • H01J5/24—Vacuum-tight joints between parts of vessel between insulating parts of vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0037—Solid sealing members other than lamp bases
    • H01J2893/0038—Direct connection between two insulating elements, in particular via glass material
    • H01J2893/0039—Glass-to-glass connection, e.g. by soldering
FR518074A 1918-06-11 1920-06-28 Improvements in the manufacture of lamps Expired FR518074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US518074XA 1918-06-11 1918-06-11

Publications (1)

Publication Number Publication Date
FR518074A true FR518074A (en) 1921-05-19

Family

ID=21973478

Family Applications (1)

Application Number Title Priority Date Filing Date
FR518074A Expired FR518074A (en) 1918-06-11 1920-06-28 Improvements in the manufacture of lamps

Country Status (1)

Country Link
FR (1) FR518074A (en)

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