FR731971A - Cathode à chauffage indirect - Google Patents
Cathode à chauffage indirectInfo
- Publication number
- FR731971A FR731971A FR731971DA FR731971A FR 731971 A FR731971 A FR 731971A FR 731971D A FR731971D A FR 731971DA FR 731971 A FR731971 A FR 731971A
- Authority
- FR
- France
- Prior art keywords
- indirectly heated
- heated cathode
- cathode
- indirectly
- heated
- Prior art date
- 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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE379334X | 1930-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR731971A true FR731971A (fr) | 1932-09-10 |
Family
ID=6344690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR731971D Expired FR731971A (fr) | 1930-05-28 | 1931-05-28 | Cathode à chauffage indirect |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2075122A (pm) |
| BE (1) | BE380140A (pm) |
| FR (1) | FR731971A (pm) |
| GB (1) | GB379334A (pm) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE760248C (de) * | 1933-11-08 | 1953-10-19 | Georg Seibt Nachf Dr | Indirekt geheizte Kathode fuer Kathodenstrahlroehren |
| US2447038A (en) * | 1945-10-31 | 1948-08-17 | Raytheon Mfg Co | Cathode structure |
| US2817784A (en) * | 1951-01-31 | 1957-12-24 | Siemens Ag | Cathode for use in electrical discharge devices |
| JPH01279537A (ja) * | 1988-04-30 | 1989-11-09 | Futaba Corp | 傍熱形線状陰極 |
| US4925741A (en) * | 1989-06-08 | 1990-05-15 | Composite Materials Technology, Inc. | Getter wire |
-
0
- BE BE380140D patent/BE380140A/xx unknown
-
1931
- 1931-05-26 GB GB15325/31A patent/GB379334A/en not_active Expired
- 1931-05-26 US US540185A patent/US2075122A/en not_active Expired - Lifetime
- 1931-05-28 FR FR731971D patent/FR731971A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB379334A (en) | 1932-08-26 |
| US2075122A (en) | 1937-03-30 |
| BE380140A (pm) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR731971A (fr) | Cathode à chauffage indirect | |
| FR715895A (fr) | Cathode à chauffage indirect | |
| FR697502A (fr) | épingle à cheveux perfectionnée | |
| FR41948E (fr) | Cathode à incandescence à chauffage indirect pour tubes à décharge | |
| FR656047A (fr) | Cathode à chauffage indirect | |
| FR759316A (fr) | Cathode à chauffage indirect | |
| FR750565A (fr) | Perfectionnements aux cathodes à chauffage indirect | |
| FR704463A (fr) | Table à pied chauffant | |
| FR769550A (fr) | Cathode à chauffage indirect | |
| NL33315C (nl) | roentgentoestel | |
| FR700878A (fr) | Appareil de chauffage à air pulsé | |
| FR689080A (fr) | Installation de chauffage central à radiateurs | |
| FR698457A (fr) | Radiateur de chauffage central | |
| FR38713E (fr) | Plansichters à percussicn | |
| FR711086A (fr) | Transformateur de chauffage | |
| FR715232A (fr) | Perfectionnements apportés aux tubes à décharge à cathode chauffée | |
| FR722963A (fr) | Transformateur à gradins | |
| FR701863A (fr) | Condenseur à surface | |
| FR693628A (fr) | Perfectionnements apportés aux radiateurs de chauffage | |
| FR689355A (fr) | Chaussure | |
| FR759326A (fr) | Cathodes à chauffage direct ou à chauffage indirect | |
| BE395530A (fr) | Chauffage par circulation à agent calorifère gazeux | |
| FR737039A (fr) | Chauffe-fers à repasser | |
| FR692039A (fr) | Four à chauffage par l'électricité | |
| FR718620A (fr) | Cathode chauffée pour tubes à décharge |