FR2198253B3 - - Google Patents
Info
- Publication number
- FR2198253B3 FR2198253B3 FR7331695A FR7331695A FR2198253B3 FR 2198253 B3 FR2198253 B3 FR 2198253B3 FR 7331695 A FR7331695 A FR 7331695A FR 7331695 A FR7331695 A FR 7331695A FR 2198253 B3 FR2198253 B3 FR 2198253B3
- 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
- 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 |
|---|---|---|---|
| CH1303172A CH549283A (de) | 1972-09-06 | 1972-09-06 | Maschenkathode fuer elektronenroehren. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2198253A1 FR2198253A1 (fr) | 1974-03-29 |
| FR2198253B3 true FR2198253B3 (fr) | 1976-08-06 |
Family
ID=4388683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7331695A Expired FR2198253B3 (fr) | 1972-09-06 | 1973-09-03 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3875445A (fr) |
| CH (1) | CH549283A (fr) |
| DE (1) | DE2247364C2 (fr) |
| FR (1) | FR2198253B3 (fr) |
| GB (1) | GB1436429A (fr) |
| NL (1) | NL182184C (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1042105A1 (ru) * | 1980-02-05 | 1983-09-15 | Организация П/Я Х-5263 | Решетчатый катод пр мого накала дл электронных ламп и способ его изготовлени |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE863831C (de) * | 1950-05-17 | 1953-01-19 | Siemens Ag | Kathode fuer Elektronenroehren |
| DE1823411U (de) * | 1958-07-01 | 1960-12-15 | Siemens Ag | Kathode fuer elektronenroehren. |
| GB987461A (en) * | 1962-05-31 | 1965-03-31 | Standard Telephones Cables Ltd | Thermionic valves |
| FR1455956A (fr) * | 1965-07-20 | 1966-05-20 | Thomson Houston Comp Francaise | Perfectionnements aux cathodes à chauffage direct |
| DE1901207A1 (de) * | 1969-01-10 | 1970-08-06 | Siemens Ag | Maschenkathode fuer Elektronenroehren hoher Leistung,insbesondere Senderoehren |
| DE1901208A1 (de) * | 1969-01-10 | 1970-07-30 | Siemens Ag | Rohrfoermige Maschenkathode fuer Elektronenroehren hoher Leistung,insbesondere Senderoehren |
-
1972
- 1972-09-06 CH CH1303172A patent/CH549283A/xx not_active IP Right Cessation
- 1972-09-27 DE DE2247364A patent/DE2247364C2/de not_active Expired
-
1973
- 1973-09-03 FR FR7331695A patent/FR2198253B3/fr not_active Expired
- 1973-09-04 GB GB4160873A patent/GB1436429A/en not_active Expired
- 1973-09-04 NL NLAANVRAGE7312150,A patent/NL182184C/xx not_active IP Right Cessation
- 1973-09-05 US US394489A patent/US3875445A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2198253A1 (fr) | 1974-03-29 |
| DE2247364C2 (de) | 1984-05-17 |
| NL7312150A (fr) | 1974-03-08 |
| NL182184B (nl) | 1987-08-17 |
| DE2247364A1 (de) | 1974-03-14 |
| NL182184C (nl) | 1988-01-18 |
| US3875445A (en) | 1975-04-01 |
| GB1436429A (en) | 1976-05-19 |
| CH549283A (de) | 1974-05-15 |