IT454148A - - Google Patents
Info
- Publication number
- IT454148A IT454148A IT454148DA IT454148A IT 454148 A IT454148 A IT 454148A IT 454148D A IT454148D A IT 454148DA IT 454148 A IT454148 A IT 454148A
- Authority
- IT
- Italy
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2405A US2692350A (en) | 1948-01-15 | 1948-01-15 | Discharge lamp and electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT454148A true IT454148A (xx) |
Family
ID=21700605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT454148D IT454148A (xx) | 1948-01-15 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2692350A (xx) |
| GB (1) | GB670006A (xx) |
| IT (1) | IT454148A (xx) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2977508A (en) * | 1956-07-17 | 1961-03-28 | Edgerton Germeshausen & Grier | Gaseous-discharge device and system |
| US3013175A (en) * | 1957-05-01 | 1961-12-12 | Sylvania Electric Prod | High output discharge lamp |
| US2908841A (en) * | 1958-05-19 | 1959-10-13 | Greber Henry | Gas discharge lamp |
| US2930919A (en) * | 1959-01-15 | 1960-03-29 | Westinghouse Electric Corp | Discharge device |
| US3271093A (en) * | 1960-06-10 | 1966-09-06 | Westinghouse Electric Corp | Method for making incandescent lamps |
| DE1489438A1 (de) * | 1965-06-29 | 1969-04-24 | Philips Nv | Gasgefuellte Anordnung,insbesondere Gluehlampe,mit Schwaerzungsschutz um einen gluehenden Koerper |
| US3710172A (en) * | 1971-04-26 | 1973-01-09 | Gen Electric | Composite thermionic cathodes for gas discharge devices |
| US3883764A (en) * | 1974-03-04 | 1975-05-13 | Gen Electric | Cathode structure for high current, low pressure discharge devices |
| NL7405071A (nl) * | 1974-04-16 | 1975-10-20 | Philips Nv | Gloeilamp met infrarood filter. |
| JP3400489B2 (ja) * | 1993-05-20 | 2003-04-28 | 東京電測株式会社 | 複合放電ランプ |
| JPH1092376A (ja) * | 1996-09-19 | 1998-04-10 | Tekunetsuto:Kk | 放電管用電極装置 |
| CA2283824A1 (en) * | 1997-03-14 | 1998-09-17 | Osram Sylvania Inc. | Starting aid for low pressure discharge lamp |
| US6630787B2 (en) * | 2000-03-06 | 2003-10-07 | Koninklijke Philips Electronics N.V. | Low-pressure mercury-vapor discharge lamp having electrode shield carrying direct electric current |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2182732A (en) * | 1926-12-10 | 1939-12-05 | Gen Electric | Metal vapor lamp |
| US2053879A (en) * | 1929-05-04 | 1936-09-08 | Hans J Spanner | Discharge tube |
| US2071426A (en) * | 1934-12-20 | 1937-02-23 | Voltarc Tubes Inc | Luminous discharge tube |
| US2233741A (en) * | 1938-11-21 | 1941-03-04 | Kurt F J Kirsten | Cathode electrode |
| US2283216A (en) * | 1941-07-19 | 1942-05-19 | Hygrade Sylvania Corp | Cathode for discharge tubes |
| US2429118A (en) * | 1943-03-24 | 1947-10-14 | Ray Lite Electrical Dev Corp | Electrode for fluorescent tubes |
| US2405089A (en) * | 1943-09-03 | 1946-07-30 | Invex Inc | Gaseous discharge device |
| US2433218A (en) * | 1945-06-12 | 1947-12-23 | Herzog Carl | Cold cathode fluorescent lamp |
-
0
- IT IT454148D patent/IT454148A/it unknown
-
1948
- 1948-01-15 US US2405A patent/US2692350A/en not_active Expired - Lifetime
- 1948-12-14 GB GB32307/48A patent/GB670006A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2692350A (en) | 1954-10-19 |
| GB670006A (en) | 1952-04-09 |