NL72322C - - Google Patents
Info
- Publication number
- NL72322C NL72322C NL135303A NL135303A NL72322C NL 72322 C NL72322 C NL 72322C NL 135303 A NL135303 A NL 135303A NL 135303 A NL135303 A NL 135303A NL 72322 C NL72322 C NL 72322C
- 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 |
|---|---|---|---|
| US675342A US2506874A (en) | 1946-06-08 | 1946-06-08 | Filament tensioning method and electrical device having improved filament tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL72322C true NL72322C (pt) | 1952-12-15 |
Family
ID=24710043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL135303A NL72322C (pt) | 1946-06-08 | 1947-10-09 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2506874A (pt) |
| DE (1) | DE837575C (pt) |
| FR (1) | FR951793A (pt) |
| GB (1) | GB657542A (pt) |
| NL (1) | NL72322C (pt) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1038660B (de) * | 1954-09-25 | 1958-09-11 | Telefunken Gmbh | Verfahren zum Spannen des Fadens einer direkt oder indirekt geheizten Kathode einer Elektronenroehre |
| DE1034277B (de) * | 1954-10-22 | 1958-07-17 | Telefunken Gmbh | Spannvorrichtung fuer Gluehdraehte in elektrischen Entladungsgefaessen |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1522286A (en) * | 1920-02-03 | 1925-01-06 | Western Electric Co | Method and apparatus for mounting filaments |
| US1608535A (en) * | 1921-12-30 | 1926-11-30 | Western Electric Co | Electric discharge device |
| US1615654A (en) * | 1922-11-07 | 1927-01-25 | Westinghouse Electric & Mfg Co | Vacuum-tube structure and method of assembling the same |
| GB243785A (en) * | 1924-08-28 | 1925-11-30 | Mullard Radio Valve Co Ltd | Improvements relating to the mounting of incandescent filaments |
| US1774698A (en) * | 1928-01-25 | 1930-09-02 | Arcturus Radio Tube Co | Vacuum-tube-filament connection and method of connecting |
| BE372758A (pt) * | 1929-09-19 | |||
| US2100306A (en) * | 1936-09-28 | 1937-11-23 | Hygrade Sylvania Corp | Filament support for radio tubes and the like |
| US2350003A (en) * | 1940-07-17 | 1944-05-30 | Bell Telephone Labor Inc | Electron discharge device |
| US2303278A (en) * | 1942-01-14 | 1942-11-24 | Sylvania Electric Prod | Shock absorber for tensioned filaments |
-
1946
- 1946-06-08 US US675342A patent/US2506874A/en not_active Expired - Lifetime
-
1947
- 1947-08-08 GB GB22078/47A patent/GB657542A/en not_active Expired
- 1947-08-08 FR FR951793D patent/FR951793A/fr not_active Expired
- 1947-10-09 NL NL135303A patent/NL72322C/xx active
-
1950
- 1950-09-30 DE DES19918A patent/DE837575C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB657542A (en) | 1951-09-19 |
| FR951793A (fr) | 1949-11-03 |
| US2506874A (en) | 1950-05-09 |
| DE837575C (de) | 1952-04-28 |