GB990724A - Improvements in electric incandescent lamps - Google Patents
Improvements in electric incandescent lampsInfo
- Publication number
- GB990724A GB990724A GB3987/64A GB398764A GB990724A GB 990724 A GB990724 A GB 990724A GB 3987/64 A GB3987/64 A GB 3987/64A GB 398764 A GB398764 A GB 398764A GB 990724 A GB990724 A GB 990724A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- embedded
- lead
- coil
- adjacent
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/18—Mountings or supports for the incandescent body
- H01K1/24—Mounts for lamps with connections at opposite ends, e.g. for tubular lamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/62—One or more circuit elements structurally associated with the lamp
- H01K1/66—One or more circuit elements structurally associated with the lamp with built-in fuse
Landscapes
- Resistance Heating (AREA)
- Fuses (AREA)
Abstract
990,724. Electric incandescent lamps. GENERAL ELECTRIC CO. Jan. 30, 1964 [Feb. 20, 1963], No. 3987/64. Heading H1F. In lamps of the type having an elongated tubular envelope of, e.g. glass or quartz and a coiled filament extending longitudinally between lead-in wires passing through the sealed ends of the envelope, a fusible element is connected between one end of the filament and the adjacent lead-in conductor and one end of a support element is overwound in interposed relation with the primary coils of a portion of the filament, the other end being embedded in the adjacent seal. The filament 3, e.g. a coiled-coil of tungsten, terminates in straight portions 4, 7, the latter being of reduced diameter to form a fuze, which are connected to foliated portions 6, 8 of lead-in conductors 5, 9 embedded in the pinch seals 2 of the tubular envelope 1. One end 11 of a support member 10 is embedded in the pinch seal 2 adjacent the portion of the filament 7 of reduced diameter, the other end 12 being formed as a helix of the same pitch as the filament coil and having an inside diameter slightly smaller than the outside diameter of the filament coil, around which it is wound.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US259877A US3211950A (en) | 1963-02-20 | 1963-02-20 | Electric incandescent lamp with integral fuse |
Publications (1)
Publication Number | Publication Date |
---|---|
GB990724A true GB990724A (en) | 1965-04-28 |
Family
ID=22986803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3987/64A Expired GB990724A (en) | 1963-02-20 | 1964-01-30 | Improvements in electric incandescent lamps |
Country Status (3)
Country | Link |
---|---|
US (1) | US3211950A (en) |
ES (1) | ES296242A1 (en) |
GB (1) | GB990724A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3364378A (en) * | 1964-04-24 | 1968-01-16 | Gen Electric | Electric incandescent lamp unit built-in fuse |
US3346768A (en) * | 1964-10-29 | 1967-10-10 | Gen Electric | Incandescent lamp with a fuse integral with the lead-in structure |
US3735185A (en) * | 1971-03-05 | 1973-05-22 | Sylvania Electric Prod | Lamp assembly |
US3864598A (en) * | 1973-08-01 | 1975-02-04 | Gen Electric | Incandescent lamp with internal fuse |
US4132922A (en) * | 1977-10-13 | 1979-01-02 | Westinghouse Electric Corp. | Gas-filled incandescent lamp with integral fuse assembly |
US4362969A (en) * | 1981-04-27 | 1982-12-07 | Gte Products Corporation | High intensity discharge lamp including arc extinguishing means |
US4897692A (en) * | 1988-04-08 | 1990-01-30 | Xerox Corporation | Fail safe fuser lamp control |
US6639364B1 (en) | 2000-06-29 | 2003-10-28 | Koninklijke Philips Electronics N.V. | Halogen incandescent capsule having filament leg clamped in press seal |
WO2005074009A2 (en) * | 2004-01-05 | 2005-08-11 | Koninklijke Philips Electronics N.V. | Lamp with double filament |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2141146A (en) * | 1935-09-17 | 1938-12-20 | Hygrade Sylvania Corp | Contactor base for lamps, tubes, and the like |
US2494917A (en) * | 1942-10-06 | 1950-01-17 | Gen Electric | Fuse lead for electric lamps |
US3132278A (en) * | 1961-09-18 | 1964-05-05 | Gen Electric | Iodine cycle incandescent lamps |
-
1963
- 1963-02-20 US US259877A patent/US3211950A/en not_active Expired - Lifetime
-
1964
- 1964-01-30 GB GB3987/64A patent/GB990724A/en not_active Expired
- 1964-02-08 ES ES0296242A patent/ES296242A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3211950A (en) | 1965-10-12 |
ES296242A1 (en) | 1964-04-16 |
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