IT389718A - - Google Patents
Info
- Publication number
- IT389718A IT389718A IT389718DA IT389718A IT 389718 A IT389718 A IT 389718A IT 389718D A IT389718D A IT 389718DA IT 389718 A IT389718 A IT 389718A
- 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
- H01J61/06—Main electrodes
- H01J61/073—Main electrodes for high-pressure discharge lamps
- H01J61/0735—Main electrodes for high-pressure discharge lamps characterised by the material of the electrode
- H01J61/0737—Main electrodes for high-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/14—Solid thermionic cathodes characterised by the material
-
- 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
- H01J61/073—Main electrodes for high-pressure discharge lamps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
- Y10T428/2942—Plural coatings
- Y10T428/2944—Free metal in coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
- Y10T428/2942—Plural coatings
- Y10T428/2949—Glass, ceramic or metal oxide in coating
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202100X | 1936-09-03 | ||
| NL2246131X | 1939-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT389718A true IT389718A (en:Method) |
Family
ID=32070563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT389718D IT389718A (en:Method) | 1936-09-03 |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US2218381A (en:Method) |
| BE (1) | BE440175A (en:Method) |
| CH (2) | CH202100A (en:Method) |
| FR (2) | FR826206A (en:Method) |
| GB (2) | GB484548A (en:Method) |
| IT (1) | IT389718A (en:Method) |
| NL (1) | NL63846C (en:Method) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2451297A (en) * | 1944-08-01 | 1948-10-12 | Rca Corp | Rugged gaseous discharge triodes |
| US2492142A (en) * | 1945-10-17 | 1949-12-27 | Kenneth J Germeshausen | Electric system embodying coldcathode gaseous discharge device |
| US2543227A (en) * | 1948-10-15 | 1951-02-27 | Western Union Telegraph Co | Concentrated arc lamp |
| US2662196A (en) * | 1948-11-04 | 1953-12-08 | Western Union Telegraph Co | Concentrated arc lamp |
| US2560933A (en) * | 1949-02-17 | 1951-07-17 | Sylvania Electric Prod | Lamp electrode |
| DE966927C (de) * | 1951-09-23 | 1957-09-19 | Quarzlampen Gmbh | Elektrische Hochdruckentladungslampe |
| BE526330A (en:Method) * | 1953-02-09 | |||
| US3105052A (en) * | 1960-03-01 | 1963-09-24 | Jr Claude C Haws | Preparation of refractory oxide microspheres |
| FR2745951B1 (fr) * | 1996-03-05 | 1998-06-05 | Thomson Csf | Cathode thermoionique et son procede de fabrication |
-
0
- NL NL63846D patent/NL63846C/xx active
- IT IT389718D patent/IT389718A/it unknown
- BE BE440175D patent/BE440175A/xx unknown
-
1937
- 1937-08-17 US US159595A patent/US2218381A/en not_active Expired - Lifetime
- 1937-08-31 GB GB23823/37A patent/GB484548A/en not_active Expired
- 1937-09-01 CH CH202100D patent/CH202100A/de unknown
- 1937-09-02 FR FR826206D patent/FR826206A/fr not_active Expired
-
1940
- 1940-05-20 GB GB8945/40A patent/GB543641A/en not_active Expired
- 1940-06-12 US US340162A patent/US2246131A/en not_active Expired - Lifetime
- 1940-12-26 FR FR51282D patent/FR51282E/fr not_active Expired
- 1940-12-31 CH CH218286D patent/CH218286A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH218286A (de) | 1941-11-30 |
| FR826206A (fr) | 1938-03-25 |
| GB484548A (en) | 1938-05-06 |
| US2246131A (en) | 1941-06-17 |
| NL63846C (en:Method) | |
| CH202100A (de) | 1938-12-31 |
| GB543641A (en) | 1942-03-06 |
| BE440175A (en:Method) | |
| FR51282E (fr) | 1942-02-18 |
| US2218381A (en) | 1940-10-15 |