NL69250C - - Google Patents
Info
- Publication number
- NL69250C NL69250C NL69250DA NL69250C NL 69250 C NL69250 C NL 69250C NL 69250D A NL69250D A NL 69250DA NL 69250 C NL69250 C NL 69250C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
-
- 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
- H01J1/24—Insulating layer or body located between heater and emissive material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Discharge Lamp (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR836527X | 1946-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL69250C true NL69250C (2) |
Family
ID=9298138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL69250D NL69250C (2) | 1946-03-05 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2520760A (2) |
| CH (1) | CH266493A (2) |
| DE (1) | DE836527C (2) |
| FR (1) | FR926598A (2) |
| GB (1) | GB630624A (2) |
| NL (1) | NL69250C (2) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL102345C (2) * | 1954-06-16 | |||
| FR1137688A (fr) * | 1954-10-22 | 1957-06-03 | Thomson Houston Comp Francaise | Cathode perfectionnée |
| US3097419A (en) * | 1960-03-11 | 1963-07-16 | dickson | |
| CH539945A (de) * | 1971-12-29 | 1973-07-31 | Bbc Brown Boveri & Cie | Verfahren zur Herstellung von Gitterelektroden für elektrische Entladungsgefässe |
| GB8611967D0 (en) * | 1986-05-16 | 1986-10-29 | English Electric Valve Co Ltd | Directly heated cathodes |
| DE4026301A1 (de) * | 1990-08-20 | 1992-02-27 | Siemens Ag | Elektronenemitter einer roentgenroehre |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2106855A (en) * | 1924-02-20 | 1938-02-01 | Westinghouse Electric & Mfg Co | Space-current device |
| NL33511C (2) * | 1926-07-07 | |||
| US1961122A (en) * | 1928-08-22 | 1934-05-29 | Westinghouse Electric & Mfg Co | Thermionic cathode |
| CH215769A (de) * | 1938-12-02 | 1941-07-15 | Lorenz C Ag | Kathode für Elektronenröhren. |
| US2263169A (en) * | 1940-10-12 | 1941-11-18 | Westinghouse Electric & Mfg Co | Indirectly heated cathode |
-
0
- NL NL69250D patent/NL69250C/xx active
-
1946
- 1946-03-05 FR FR926598D patent/FR926598A/fr not_active Expired
-
1947
- 1947-03-04 CH CH266493D patent/CH266493A/fr unknown
- 1947-03-04 GB GB6170/47A patent/GB630624A/en not_active Expired
- 1947-04-09 US US740418A patent/US2520760A/en not_active Expired - Lifetime
-
1950
- 1950-10-01 DE DEC2965A patent/DE836527C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE836527C (de) | 1952-04-15 |
| US2520760A (en) | 1950-08-29 |
| FR926598A (fr) | 1947-10-06 |
| GB630624A (en) | 1949-10-18 |
| CH266493A (fr) | 1950-01-31 |