NL76841C - - Google Patents
Info
- Publication number
- NL76841C NL76841C NL76841DA NL76841C NL 76841 C NL76841 C NL 76841C NL 76841D A NL76841D A NL 76841DA NL 76841 C NL76841 C NL 76841C
- Authority
- NL
- Netherlands
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
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US366855A US2258158A (en) | 1940-11-23 | 1940-11-23 | Electric discharge lamp cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL76841C true NL76841C (en) |
Family
ID=23444848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL76841D NL76841C (en) | 1940-11-23 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2258158A (en) |
| BE (1) | BE481787A (en) |
| FR (1) | FR950546A (en) |
| GB (1) | GB647954A (en) |
| NL (1) | NL76841C (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2424518A (en) * | 1944-12-04 | 1947-07-22 | Gen Electric | Coil electrode |
| BE482916A (en) * | 1947-06-05 | |||
| US2560933A (en) * | 1949-02-17 | 1951-07-17 | Sylvania Electric Prod | Lamp electrode |
| US2663816A (en) * | 1949-09-28 | 1953-12-22 | Sylvania Electric Prod | Electric discharge lamp |
| US2657325A (en) * | 1950-12-23 | 1953-10-27 | Sylvania Electric Prod | Electrode for electric discharge lamps |
| US2785093A (en) * | 1954-06-29 | 1957-03-12 | Bell Telephone Labor Inc | Method of preparing cathodes for discharge devices |
| US2917650A (en) * | 1955-06-29 | 1959-12-15 | Hyperion Sa | Electrode for discharge tubes |
| US2935637A (en) * | 1957-03-05 | 1960-05-03 | Thomas M Cortese | Fluorescent lamp |
| US2961568A (en) * | 1957-11-14 | 1960-11-22 | Gen Electric | Filament joint for incandescent lamps |
| US3247699A (en) * | 1962-01-12 | 1966-04-26 | Westinghouse Electric Corp | Manufacture of multiply-coiled electrodes for discharge devices |
| US3312856A (en) * | 1963-03-26 | 1967-04-04 | Gen Electric | Rhenium supported metallic boride cathode emitters |
| US3546519A (en) * | 1968-08-21 | 1970-12-08 | Tokyo Shibaura Electric Co | Fluorescent lamps with coil electrodes and electrode support structure |
| US4523125A (en) * | 1981-07-13 | 1985-06-11 | General Electric Company | Fluorescent lamp electrodes |
| US5680003A (en) * | 1995-05-19 | 1997-10-21 | General Electric Company | Coiled-coil filament design for an incandescent lamp |
-
0
- NL NL76841D patent/NL76841C/xx active
- BE BE481787D patent/BE481787A/xx unknown
-
1940
- 1940-11-23 US US366855A patent/US2258158A/en not_active Expired - Lifetime
-
1947
- 1947-07-29 GB GB20499/47A patent/GB647954A/en not_active Expired
- 1947-07-31 FR FR950546D patent/FR950546A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2258158A (en) | 1941-10-07 |
| FR950546A (en) | 1949-09-29 |
| BE481787A (en) | |
| GB647954A (en) | 1950-12-28 |