BE475720A - - Google Patents
Info
- Publication number
- BE475720A BE475720A BE475720DA BE475720A BE 475720 A BE475720 A BE 475720A BE 475720D A BE475720D A BE 475720DA BE 475720 A BE475720 A BE 475720A
- Authority
- BE
- Belgium
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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL262907X | 1946-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE475720A true BE475720A (xx) |
Family
ID=19781584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE475720D BE475720A (xx) | 1946-08-30 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2504335A (xx) |
| BE (1) | BE475720A (xx) |
| CH (1) | CH262907A (xx) |
| DE (1) | DE817936C (xx) |
| FR (1) | FR952562A (xx) |
| GB (1) | GB639589A (xx) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB810202A (en) * | 1955-06-10 | 1959-03-11 | Vickers Electrical Co Ltd | Improvements relating to thermionic cathodes for electron discharge devices |
| US2919373A (en) * | 1957-01-22 | 1959-12-29 | Edgerton Germeshausen & Grier | Cathode heater |
| DE1143589B (de) * | 1959-12-22 | 1963-02-14 | Edgerton Germeshausen And Grie | Verfahren zur Herstellung eines Heizers fuer Kathoden von elektrischen Entladungsroehren |
| NL262042A (xx) * | 1960-03-11 | |||
| US3226806A (en) * | 1960-03-18 | 1966-01-04 | Eitel Mccullough Inc | Method of making a cathode heater assembly |
| NL298577A (xx) * | 1963-02-25 | |||
| AT265448B (de) * | 1963-04-30 | 1968-10-10 | Matsushita Electronics Corp | Verfahren zur Herstellung flacher Kathoden für Elektronenröhren |
| US3581144A (en) * | 1969-03-27 | 1971-05-25 | Gen Electric | Metal-clad insulated electrical heater |
| DE102012209936A1 (de) * | 2012-06-13 | 2013-12-19 | Webasto Ag | Elektrische Heizeinrichtung für ein Kraftfahrzeug |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2038341A (en) * | 1934-06-07 | 1936-04-21 | Aeg | Electron discharge device |
| AT148796B (de) * | 1935-03-06 | 1937-03-10 | Ver Telephon Czeija Nissl & Co | Indirekt geheizte Kathode. |
| FR833591A (fr) * | 1937-06-23 | 1938-10-25 | Materiel Telephonique | Procédés et moyens applicables notamment à l'amplification de variations électriques |
| US2263169A (en) * | 1940-10-12 | 1941-11-18 | Westinghouse Electric & Mfg Co | Indirectly heated cathode |
| BE470922A (xx) * | 1944-01-31 | |||
| FR959951A (xx) * | 1944-02-12 | 1950-04-07 | ||
| US2436907A (en) * | 1945-06-23 | 1948-03-02 | Nasa | Indirectly heated cathode |
-
0
- BE BE475720D patent/BE475720A/xx unknown
-
1947
- 1947-08-06 US US766801A patent/US2504335A/en not_active Expired - Lifetime
- 1947-08-27 GB GB23672/47A patent/GB639589A/en not_active Expired
- 1947-08-28 CH CH262907D patent/CH262907A/de unknown
- 1947-08-28 FR FR952562D patent/FR952562A/fr not_active Expired
-
1948
- 1948-11-05 DE DEP20745A patent/DE817936C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2504335A (en) | 1950-04-18 |
| GB639589A (en) | 1950-06-28 |
| DE817936C (de) | 1951-10-22 |
| CH262907A (de) | 1949-07-31 |
| FR952562A (fr) | 1949-11-21 |