GB637541A - Incandescent electric lamp - Google Patents
Incandescent electric lampInfo
- Publication number
- GB637541A GB637541A GB21693/47A GB2169347A GB637541A GB 637541 A GB637541 A GB 637541A GB 21693/47 A GB21693/47 A GB 21693/47A GB 2169347 A GB2169347 A GB 2169347A GB 637541 A GB637541 A GB 637541A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prongs
- lamp
- fuse
- sleeve
- sealed
- 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
- H01K1/62—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)
Abstract
637,541. Lamp-caps. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 7, 1947, No. 21693. Convention date, Nov. 7, 1938. [Classes 36 and 38 (i)] In a gas-filled, incandescent lamp of the type having two contact prongs, one of the prongs contains a fuse 10. The prong is formed by one of the supports 3 for the lamp filament being extended through the lamp cap as a hollow shaft 12. One end of the fuse wire 10 is secured to the bottom of the hollow shaft and is surrounded by an insulating sleeve 14. Another insulating sleeve 15 is placed round the shaft with a metal sleeve 16 arranged round it to provide the contact surface. A heavy wire 19 connects the other end of the fuse wire to the sleeve 16, cement 18 then being injected through the end of the latter to hold it in position and to seal the end of the fuse. Thin cups 8 of a metal such as " Fernico " capable of being sealed to glass surround the prongs where they are sealed through the lamp cap, sealing rings 9 of copper being located between the cups and the prongs.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US637541XA | 1938-11-07 | 1938-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB637541A true GB637541A (en) | 1950-05-24 |
Family
ID=22051272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21693/47A Expired GB637541A (en) | 1938-11-07 | 1947-08-07 | Incandescent electric lamp |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB637541A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2521880A1 (en) * | 2010-05-21 | 2012-11-14 | Osram AG | Fuse for a led fl retrofit lamp, led fl retrofit lamp, and methods for producing a led fl retrofit lamp |
| WO2013186659A1 (en) * | 2012-06-14 | 2013-12-19 | Koninklijke Philips N.V. | A fuse and resistor device for a solid state lighting device |
-
1947
- 1947-08-07 GB GB21693/47A patent/GB637541A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2521880A1 (en) * | 2010-05-21 | 2012-11-14 | Osram AG | Fuse for a led fl retrofit lamp, led fl retrofit lamp, and methods for producing a led fl retrofit lamp |
| WO2013186659A1 (en) * | 2012-06-14 | 2013-12-19 | Koninklijke Philips N.V. | A fuse and resistor device for a solid state lighting device |
| CN104395982A (en) * | 2012-06-14 | 2015-03-04 | 皇家飞利浦有限公司 | A fuse and resistor device for a solid state lighting device |
| US9185770B2 (en) | 2012-06-14 | 2015-11-10 | Koninklijke Philips N.V. | Fuse and resistor device for a solid state lighting device |
| RU2631662C2 (en) * | 2012-06-14 | 2017-09-26 | Филипс Лайтинг Холдинг Б.В. | Device with fuse and resistor for solid-state lighting device |
| CN104395982B (en) * | 2012-06-14 | 2018-02-13 | 飞利浦照明控股有限公司 | Fuse and resistor device for solid state illumination device |
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