NL24414C - - Google Patents
Info
- Publication number
- NL24414C NL24414C NL24414DA NL24414C NL 24414 C NL24414 C NL 24414C NL 24414D A NL24414D A NL 24414DA NL 24414 C NL24414 C NL 24414C
- 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
- H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
- H01J61/0677—Main electrodes for low-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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE272440X | 1926-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL24414C true NL24414C (it) |
Family
ID=6010243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL24414D NL24414C (it) | 1926-06-09 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US1817636A (it) |
| FR (1) | FR657054A (it) |
| GB (1) | GB272440A (it) |
| NL (1) | NL24414C (it) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE486753A (it) * | 1948-01-15 | |||
| US2552654A (en) * | 1948-08-30 | 1951-05-15 | Rca Corp | Heat-resistant cathode coatings |
| US2662196A (en) * | 1948-11-04 | 1953-12-08 | Western Union Telegraph Co | Concentrated arc lamp |
| US2663816A (en) * | 1949-09-28 | 1953-12-22 | Sylvania Electric Prod | Electric discharge lamp |
| US2605432A (en) * | 1949-10-19 | 1952-07-29 | Electrons Inc | Indirectly heated cathode structure |
| BE518639A (it) * | 1952-03-24 | |||
| US2845567A (en) * | 1954-02-04 | 1958-07-29 | Itt | Indirectly heated thermionic cathode |
| BE545445A (it) * | 1955-02-23 | |||
| DE1035791B (de) * | 1956-05-29 | 1958-08-07 | Philips Nv | Glimmentladungsroehre mit aktivierter kalter Kathode und Verfahren zum Herstellen einer mit einer solchen Kathode versehenen Roehre |
-
0
- NL NL24414D patent/NL24414C/xx active
-
1927
- 1927-02-04 GB GB3270/27A patent/GB272440A/en not_active Expired
- 1927-06-06 US US196996A patent/US1817636A/en not_active Expired - Lifetime
- 1927-06-07 FR FR657054D patent/FR657054A/fr not_active Expired
-
1929
- 1929-03-28 US US350771A patent/US1925701A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1817636A (en) | 1931-08-04 |
| GB272440A (en) | 1928-04-26 |
| US1925701A (en) | 1933-09-05 |
| FR657054A (fr) | 1929-05-16 |