FR944029A - Circular electric lamps - Google Patents

Circular electric lamps

Info

Publication number
FR944029A
FR944029A FR944029DA FR944029A FR 944029 A FR944029 A FR 944029A FR 944029D A FR944029D A FR 944029DA FR 944029 A FR944029 A FR 944029A
Authority
FR
France
Prior art keywords
electric lamps
circular electric
circular
lamps
electric
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 FR944029A publication Critical patent/FR944029A/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
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • H01J5/56—Shape of the separate part
    • H01J5/565—Bases for circular lamps
FR944029D 1945-05-07 1947-03-28 Circular electric lamps Expired FR944029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US592478A US2453986A (en) 1945-05-07 1945-05-07 Circular electric lamp

Publications (1)

Publication Number Publication Date
FR944029A true FR944029A (en) 1949-03-24

Family

ID=24370808

Family Applications (1)

Application Number Title Priority Date Filing Date
FR944029D Expired FR944029A (en) 1945-05-07 1947-03-28 Circular electric lamps

Country Status (4)

Country Link
US (1) US2453986A (en)
CH (1) CH260736A (en)
FR (1) FR944029A (en)
GB (1) GB655662A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391560A1 (en) * 1977-05-20 1978-12-15 Gte Sylvania Inc SOCKET FOR HIGH POWER INCANDESCENCE LAMP

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE488439A (en) * 1948-04-19
US2716739A (en) * 1953-09-15 1955-08-30 Gen Electric Lamp base and holders for double ended electric-discharge lamps
US3020393A (en) * 1953-12-31 1962-02-06 Aeg Base and socket for fluorescent lamps
DE1014231B (en) * 1953-12-31 1957-08-22 Aeg Arrangement for fluorescent lamps
DE1027793B (en) * 1956-06-02 1958-04-10 Berliner Gluehlampen Werk Veb Socket for fluorescent lamps
DE1069292B (en) * 1956-06-28
US3274420A (en) * 1961-09-27 1966-09-20 Tokyo Shibaura Electric Co Annular fluorescent lamps
DE7218982U (en) * 1972-05-19 1973-03-29 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Base for ring-shaped fluorescent lamps
US3898495A (en) * 1974-04-05 1975-08-05 Westinghouse Electric Corp Circular fluorescent lamp with two-piece snap-lock base
US4278911A (en) * 1979-06-13 1981-07-14 General Electric Company Circular fluorescent lamp unit
DE29600594U1 (en) * 1996-01-15 1997-05-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Low-pressure discharge lamp with base and associated socket

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1836024A (en) * 1929-12-17 1931-12-15 Harase Hanzaburo Gas and vacuum tube electrode
DE653419C (en) * 1934-08-11 1937-11-23 Patra Patent Treuhand Current feedthrough for single-walled electric discharge lamps, especially electric light tubes
US2119675A (en) * 1936-01-31 1938-06-07 Westinghouse Electric & Mfg Co Sodium lamp
US2114175A (en) * 1937-03-13 1938-04-12 Gen Electric Electric lamp or similar device
BE427839A (en) * 1937-04-30
BE429413A (en) * 1937-07-28
US2267318A (en) * 1939-03-21 1941-12-23 Gen Electric Electrode and terminal structure for electric discharge devices
US2295043A (en) * 1939-06-28 1942-09-08 Gen Electric Electric discharge lamp
BE478359A (en) * 1941-10-18
US2366252A (en) * 1941-10-18 1945-01-02 Gen Electric Circular electric lamp
US2392785A (en) * 1945-03-28 1946-01-08 Sylvania Electric Prod Lamp base

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391560A1 (en) * 1977-05-20 1978-12-15 Gte Sylvania Inc SOCKET FOR HIGH POWER INCANDESCENCE LAMP

Also Published As

Publication number Publication date
GB655662A (en) 1951-08-01
CH260736A (en) 1949-03-31
US2453986A (en) 1948-11-16

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