GB644409A - Improvements in electric discharge lamps - Google Patents
Improvements in electric discharge lampsInfo
- Publication number
- GB644409A GB644409A GB3287/48A GB328748A GB644409A GB 644409 A GB644409 A GB 644409A GB 3287/48 A GB3287/48 A GB 3287/48A GB 328748 A GB328748 A GB 328748A GB 644409 A GB644409 A GB 644409A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge lamps
- feb
- anodes
- coiled
- electric discharge
- 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
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/067—Main electrodes for low-pressure discharge lamps
- H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
Landscapes
- Discharge Lamp (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US726603A US2479164A (en) | 1947-02-05 | 1947-02-05 | Electric glow discharge lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
GB644409A true GB644409A (en) | 1950-10-11 |
Family
ID=24919272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3287/48A Expired GB644409A (en) | 1947-02-05 | 1948-02-04 | Improvements in electric discharge lamps |
Country Status (4)
Country | Link |
---|---|
US (1) | US2479164A (fr) |
ES (1) | ES182063A1 (fr) |
FR (1) | FR961959A (fr) |
GB (1) | GB644409A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2719932A (en) * | 1947-01-15 | 1955-10-04 | Gen Electric | Soft glass ultraviolet discharge lamp |
US2623191A (en) * | 1947-03-20 | 1952-12-23 | Int Standard Electric Corp | Electric discharge tube |
BE542776A (fr) * | 1954-11-16 | |||
US3067355A (en) * | 1960-03-16 | 1962-12-04 | Burroughs Corp | Indicator tube |
DE2732060C2 (de) * | 1976-07-19 | 1986-06-12 | Thorn Emi Ltd., London | Elektrische Leuchtstofflampe |
US4297617A (en) * | 1980-03-24 | 1981-10-27 | Galaspie Charles E | Light producing device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1675350A (en) * | 1921-02-09 | 1928-07-03 | Philips Nv | Electric gas-filled glow-discharge device |
US2984469A (en) * | 1958-04-25 | 1961-05-16 | Goodman Mfg Co | Tensioning means for trimmer chain of boring type miner |
-
0
- FR FR961959D patent/FR961959A/fr not_active Expired
-
1947
- 1947-02-05 US US726603A patent/US2479164A/en not_active Expired - Lifetime
-
1948
- 1948-02-04 GB GB3287/48A patent/GB644409A/en not_active Expired
- 1948-02-04 ES ES0182063A patent/ES182063A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2479164A (en) | 1949-08-16 |
FR961959A (fr) | 1950-05-26 |
ES182063A1 (es) | 1948-03-01 |
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