GB520835A - Improvements in gasfilled electric incandescent lamps - Google Patents
Improvements in gasfilled electric incandescent lampsInfo
- Publication number
- GB520835A GB520835A GB31517/38A GB3151738A GB520835A GB 520835 A GB520835 A GB 520835A GB 31517/38 A GB31517/38 A GB 31517/38A GB 3151738 A GB3151738 A GB 3151738A GB 520835 A GB520835 A GB 520835A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- incandescent lamps
- nitrogen
- electric incandescent
- hydrogen
- 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
- H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
- H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
- H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Discharge Lamp (AREA)
Abstract
520,835. Gas-filled incandescent lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 31, 1938, No, 31517. Convention date, Nov. 2, 1937. [Class 39 (ii)] Hydrogen or hydrogen compounds which may be occluded from the metal parts of an incandescent lamp having a filling of rare gas and nitrogen are absorbed without affecting the nitrogen by metallic zirconium in the form of powder, wire or foil placed at a point in the lamp at which the temperature is confined to the range 200‹C. to 600‹C. Such points are the pinch and the supply conductors and, in the case of a small lamp for motor-cars, on the screen which surrounds the filament.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL208437X | 1937-11-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB520835A true GB520835A (en) | 1940-05-06 |
Family
ID=19778687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31517/38A Expired GB520835A (en) | 1937-11-02 | 1938-10-31 | Improvements in gasfilled electric incandescent lamps |
Country Status (7)
Country | Link |
---|---|
US (1) | US2203897A (en) |
BE (1) | BE430899A (en) |
CH (1) | CH208437A (en) |
DE (1) | DE711881C (en) |
FR (1) | FR845482A (en) |
GB (1) | GB520835A (en) |
NL (1) | NL51546C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2462837A (en) * | 1945-10-08 | 1949-03-01 | Tung Sol Lamp Works Inc | Incandescent lamp |
US2489261A (en) * | 1948-04-15 | 1949-11-29 | Tung Sol Lamp Works Inc | Metallic filament incandescent electric lamp and the manufacture thereof |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2455394A (en) * | 1943-06-29 | 1948-12-07 | Sperry Corp | Accelerometer |
DE1015145B (en) * | 1953-12-05 | 1957-09-05 | Egyesuelt Izzolampa | Gas-filled electric incandescent lamp, in particular gas-filled incandescent lamp provided with a screen, e.g. Car lamp, and a specific getter |
US3519864A (en) * | 1966-12-29 | 1970-07-07 | Sylvania Electric Prod | High pressure electric discharge device with barium peroxide getter and getter mounting structure |
-
0
- BE BE430899D patent/BE430899A/xx unknown
- NL NL51546D patent/NL51546C/xx active
-
1938
- 1938-10-27 US US237365A patent/US2203897A/en not_active Expired - Lifetime
- 1938-10-31 FR FR845482D patent/FR845482A/en not_active Expired
- 1938-10-31 CH CH208437D patent/CH208437A/en unknown
- 1938-10-31 GB GB31517/38A patent/GB520835A/en not_active Expired
- 1938-11-01 DE DEN42618D patent/DE711881C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2462837A (en) * | 1945-10-08 | 1949-03-01 | Tung Sol Lamp Works Inc | Incandescent lamp |
US2489261A (en) * | 1948-04-15 | 1949-11-29 | Tung Sol Lamp Works Inc | Metallic filament incandescent electric lamp and the manufacture thereof |
Also Published As
Publication number | Publication date |
---|---|
CH208437A (en) | 1940-01-31 |
FR845482A (en) | 1939-08-24 |
US2203897A (en) | 1940-06-11 |
DE711881C (en) | 1941-10-08 |
BE430899A (en) | |
NL51546C (en) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1211179A (en) | Improvements in or relating to electric lamps | |
GB520835A (en) | Improvements in gasfilled electric incandescent lamps | |
GB1054423A (en) | ||
GB1224152A (en) | Sealed container having a zirconium-tin alloy getter | |
GB1409957A (en) | Incandescent lamp | |
GB1248157A (en) | Metallic vapor arc-lamp | |
GB502078A (en) | Improvements in or relating to gasfilled electric incandescent lamps | |
GB1026069A (en) | Arc discharge lamp | |
GB420575A (en) | Improvements in electric gasfilled incandescent lamps | |
US2267092A (en) | Sodium vapor lamp | |
GB879062A (en) | A gas-filled incandescent electric lamp, more especially for projection purposes | |
US1687496A (en) | Incandescent lamp | |
GB608677A (en) | Improvements in gas-filled electron discharge devices | |
GB1195109A (en) | Tungsten Incandescent Lamps. | |
GB268986A (en) | Improvements in or relating to electric incandescent lamps | |
GB196905A (en) | Improvements in or relating to electric lamps provided with a coiled filament | |
SE304557B (en) | ||
GB1286746A (en) | Getter composition for electric lamps and similar devices | |
GB1129865A (en) | Improvements in or relating to low-pressure mercury vapour discharge lamps | |
GB1019814A (en) | Improvements in or relating to gas-filled electric incandescent lamps | |
GB1102646A (en) | Electric lamp with ribbon seal | |
GB521331A (en) | Improvements in or relating to electric gasfilled incandescent lamps whose operatingpressure exceeds 4 atms | |
GB511889A (en) | Improvements in gas-filled electric incandescent lamps | |
GB1033717A (en) | Improvements relating to the mounting of electric incandescent lamps | |
GB976944A (en) | Improvements in or relating to electric incandescent lamps |