NL6603090A - - Google Patents
Info
- Publication number
- NL6603090A NL6603090A NL6603090A NL6603090A NL6603090A NL 6603090 A NL6603090 A NL 6603090A NL 6603090 A NL6603090 A NL 6603090A NL 6603090 A NL6603090 A NL 6603090A NL 6603090 A NL6603090 A NL 6603090A
- 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
- H01J1/14—Solid thermionic cathodes characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/04—Cathodes
- H01J23/05—Cathodes having a cylindrical emissive surface, e.g. cathodes for magnetrons
-
- 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
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Microwave Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB10403/65A GB1129615A (en) | 1965-03-11 | 1965-03-11 | Improvements in or relating to electron discharge device cathodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6603090A true NL6603090A (https=) | 1966-09-12 |
Family
ID=9967193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6603090A NL6603090A (https=) | 1965-03-11 | 1966-03-09 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3477110A (https=) |
| CH (1) | CH443494A (https=) |
| DE (1) | DE1539896B1 (https=) |
| GB (1) | GB1129615A (https=) |
| NL (1) | NL6603090A (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3558966A (en) * | 1967-03-01 | 1971-01-26 | Semicon Associates Inc | Directly heated dispenser cathode |
| GB8611967D0 (en) * | 1986-05-16 | 1986-10-29 | English Electric Valve Co Ltd | Directly heated cathodes |
| GB2214704B (en) * | 1988-01-20 | 1992-05-06 | English Electric Valve Co Ltd | Magnetrons |
| US7545089B1 (en) * | 2005-03-21 | 2009-06-09 | Calabazas Creek Research, Inc. | Sintered wire cathode |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2589521A (en) * | 1952-03-18 | Heater | ||
| US1946603A (en) * | 1929-05-09 | 1934-02-13 | Electrons Inc | Cathode for electrical discharge devices |
| US2175345A (en) * | 1935-07-12 | 1939-10-10 | Gen Electric | Electric gaseous discharge device |
| US2287460A (en) * | 1940-11-29 | 1942-06-23 | Rca Corp | Insulated heater and method of manufacture |
| US2867032A (en) * | 1950-10-27 | 1959-01-06 | Sylvania Electric Prod | Method for producing vacuum tube heater elements |
| US3201639A (en) * | 1955-02-09 | 1965-08-17 | Philips Corp | Thermionic dispenser cathode |
| US2878409A (en) * | 1957-04-29 | 1959-03-17 | Philips Corp | Dispenser-type cathode and method of making |
| US3117249A (en) * | 1960-02-16 | 1964-01-07 | Sperry Rand Corp | Embedded heater cathode |
| NL268393A (https=) * | 1960-08-19 | |||
| US3307241A (en) * | 1963-10-14 | 1967-03-07 | Litton Prec Products Inc | Process for making cathodes |
-
1965
- 1965-03-11 GB GB10403/65A patent/GB1129615A/en not_active Expired
-
1966
- 1966-03-03 US US531621A patent/US3477110A/en not_active Expired - Lifetime
- 1966-03-09 NL NL6603090A patent/NL6603090A/xx unknown
- 1966-03-09 DE DE19661539896 patent/DE1539896B1/de active Pending
- 1966-03-10 CH CH341966A patent/CH443494A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3477110A (en) | 1969-11-11 |
| CH443494A (fr) | 1967-09-15 |
| DE1539896B1 (de) | 1970-08-20 |
| GB1129615A (en) | 1968-10-09 |