FR2115906A5 - - Google Patents
Info
- Publication number
- FR2115906A5 FR2115906A5 FR7141686A FR7141686A FR2115906A5 FR 2115906 A5 FR2115906 A5 FR 2115906A5 FR 7141686 A FR7141686 A FR 7141686A FR 7141686 A FR7141686 A FR 7141686A FR 2115906 A5 FR2115906 A5 FR 2115906A5
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/38—Control electrodes, e.g. grid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0015—Non-sealed electrodes
- H01J2893/0017—Cylindrical, helical or annular grids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/0022—Manufacture
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2057331A DE2057331C3 (de) | 1970-11-21 | 1970-11-21 | Elektrode für eine Elektronenröhre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2115906A5 true FR2115906A5 (enExample) | 1972-07-07 |
Family
ID=5788772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7141686A Expired FR2115906A5 (enExample) | 1970-11-21 | 1971-11-22 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3758810A (enExample) |
| DE (1) | DE2057331C3 (enExample) |
| FR (1) | FR2115906A5 (enExample) |
| GB (1) | GB1360662A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE520901C2 (sv) * | 2001-11-30 | 2003-09-09 | Bact System Ab | Emissionselektrod |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1696103A (en) * | 1921-08-26 | 1928-12-18 | Seibt Georg | Electric discharge tube |
| US2157595A (en) * | 1937-02-25 | 1939-05-09 | John F Cudney | Thermionic vacuum tube |
| US2980984A (en) * | 1957-08-19 | 1961-04-25 | Rca Corp | Art of fabricating electron tubes |
| US3146515A (en) * | 1962-10-16 | 1964-09-01 | Rca Corp | Method of making an electron tube |
-
1970
- 1970-11-21 DE DE2057331A patent/DE2057331C3/de not_active Expired
-
1971
- 1971-11-18 US US00199882A patent/US3758810A/en not_active Expired - Lifetime
- 1971-11-18 GB GB5360371A patent/GB1360662A/en not_active Expired
- 1971-11-22 FR FR7141686A patent/FR2115906A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1360662A (en) | 1974-07-17 |
| DE2057331B2 (de) | 1974-01-10 |
| DE2057331A1 (de) | 1972-05-31 |
| US3758810A (en) | 1973-09-11 |
| DE2057331C3 (de) | 1974-08-08 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |