NL298210A - - Google Patents
Info
- Publication number
- NL298210A NL298210A NL298210DA NL298210A NL 298210 A NL298210 A NL 298210A NL 298210D A NL298210D A NL 298210DA NL 298210 A NL298210 A NL 298210A
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/18—Supports; Vibration-damping arrangements
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL63298210A NL142273B (en) | 1963-09-20 | 1963-09-20 | DIRECTLY HEATED CATHODE FOR AN ELECTRICAL DISCHARGE TUBE, AND ELECTRIC DISCHARGE TUBE FITTED WITH AT LEAST SUCH A CATHOD. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL298210A true NL298210A (en) |
Family
ID=19755072
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL298210D NL298210A (en) | 1963-09-20 | ||
| NL63298210A NL142273B (en) | 1963-09-20 | 1963-09-20 | DIRECTLY HEATED CATHODE FOR AN ELECTRICAL DISCHARGE TUBE, AND ELECTRIC DISCHARGE TUBE FITTED WITH AT LEAST SUCH A CATHOD. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL63298210A NL142273B (en) | 1963-09-20 | 1963-09-20 | DIRECTLY HEATED CATHODE FOR AN ELECTRICAL DISCHARGE TUBE, AND ELECTRIC DISCHARGE TUBE FITTED WITH AT LEAST SUCH A CATHOD. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3327157A (en) |
| AT (1) | AT250517B (en) |
| BE (1) | BE653296A (en) |
| CH (1) | CH425000A (en) |
| DE (1) | DE1234857B (en) |
| ES (1) | ES304155A1 (en) |
| GB (1) | GB1025168A (en) |
| NL (2) | NL142273B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3922578A (en) * | 1974-05-01 | 1975-11-25 | Gte Sylvania Inc | Large area cathode |
| US4487673A (en) * | 1982-04-21 | 1984-12-11 | Rca Corporation | Method of making a line cathode having localized emissive coating |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1720442A (en) * | 1923-06-19 | 1929-07-09 | Ass Elect Ind | Vacuum electric-tube apparatus |
| DE519082C (en) * | 1926-04-21 | 1931-02-23 | Radiotechnique Soc | Process for the production of electron tubes |
| US1980937A (en) * | 1933-09-07 | 1934-11-13 | Rca Corp | Electron discharge device |
| US2656477A (en) * | 1951-05-25 | 1953-10-20 | Lafayette M Hughes | Photoelectric cell having a light sensitive electron emissive cathode |
| AT230502B (en) * | 1960-10-14 | 1963-12-10 | Philips Nv | Directly heated cathode for an electrical discharge tube, forming a rigid, handleable unit |
-
0
- NL NL298210D patent/NL298210A/xx unknown
-
1963
- 1963-09-20 NL NL63298210A patent/NL142273B/en unknown
-
1964
- 1964-09-16 DE DEN25521A patent/DE1234857B/en active Pending
- 1964-09-16 US US396882A patent/US3327157A/en not_active Expired - Lifetime
- 1964-09-17 AT AT800764A patent/AT250517B/en active
- 1964-09-17 GB GB38008/64A patent/GB1025168A/en not_active Expired
- 1964-09-17 CH CH1208264A patent/CH425000A/en unknown
- 1964-09-18 ES ES0304155A patent/ES304155A1/en not_active Expired
- 1964-09-18 BE BE653296A patent/BE653296A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1025168A (en) | 1966-04-06 |
| US3327157A (en) | 1967-06-20 |
| CH425000A (en) | 1966-11-30 |
| DE1234857B (en) | 1967-02-23 |
| ES304155A1 (en) | 1965-03-16 |
| AT250517B (en) | 1966-11-10 |
| NL142273B (en) | 1974-05-15 |
| BE653296A (en) | 1965-03-18 |