NL38569C - - Google Patents
Info
- Publication number
- NL38569C NL38569C NL38569DA NL38569C NL 38569 C NL38569 C NL 38569C NL 38569D A NL38569D A NL 38569DA NL 38569 C NL38569 C NL 38569C
- 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
- H01J1/20—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 |
|---|---|---|---|
| GB18051/33A GB419096A (en) | 1933-06-24 | 1933-06-24 | Improvements in thermionic cathodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL38569C true NL38569C (de) |
Family
ID=10105780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL38569D NL38569C (de) | 1933-06-24 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2014787A (de) |
| BE (1) | BE403333A (de) |
| FR (1) | FR772609A (de) |
| GB (1) | GB419096A (de) |
| NL (1) | NL38569C (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2589522A (en) * | 1952-03-18 | Cathode heater structure | ||
| US2589521A (en) * | 1952-03-18 | Heater | ||
| BE478149A (de) * | 1946-11-13 | |||
| US2653268A (en) * | 1950-05-01 | 1953-09-22 | Beverly D Kumpfer | Directly heated cathode structure |
| GB734196A (en) * | 1952-06-11 | 1955-07-27 | Standard Telephones Cables Ltd | Improvements in or relating to indirectly heated cathodes |
| US2872611A (en) * | 1953-11-16 | 1959-02-03 | Sylvania Electric Prod | Cathode |
| US3226806A (en) * | 1960-03-18 | 1966-01-04 | Eitel Mccullough Inc | Method of making a cathode heater assembly |
| NL268393A (de) * | 1960-08-19 | |||
| EP1983546A1 (de) * | 2007-04-20 | 2008-10-22 | PANalytical B.V. | Röntgenstrahlkathode und -röhre |
-
0
- NL NL38569D patent/NL38569C/xx active
- BE BE403333D patent/BE403333A/xx unknown
-
1933
- 1933-06-24 GB GB18051/33A patent/GB419096A/en not_active Expired
-
1934
- 1934-04-30 FR FR772609D patent/FR772609A/fr not_active Expired
- 1934-05-29 US US728062A patent/US2014787A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR772609A (fr) | 1934-11-02 |
| US2014787A (en) | 1935-09-17 |
| GB419096A (en) | 1934-11-06 |
| BE403333A (de) |