NL91413C - - Google Patents
Info
- Publication number
- NL91413C NL91413C NL91413DA NL91413C NL 91413 C NL91413 C NL 91413C NL 91413D A NL91413D A NL 91413DA NL 91413 C NL91413 C NL 91413C
- 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
- H01J9/042—Manufacture, activation of the emissive part
- H01J9/047—Cathodes having impregnated bodies
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Discharge Lamp (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21697251A | 1951-03-22 | 1951-03-22 | |
| US555221A US3010826A (en) | 1951-03-22 | 1955-12-14 | Method of making dispenser type cathodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL91413C true NL91413C (en) |
Family
ID=26911501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL91413D NL91413C (en) | 1951-03-22 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3010826A (en) |
| BE (1) | BE510092A (en) |
| CH (1) | CH311391A (en) |
| DE (1) | DE927518C (en) |
| FR (1) | FR1066084A (en) |
| GB (1) | GB705537A (en) |
| NL (1) | NL91413C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE967137C (en) * | 1953-02-05 | 1957-10-10 | Csf | Process for the production of a cathode for electrical discharge vessels, in which wires extending perpendicular to the emitting surface close off a supply of emission substances |
| US3258636A (en) * | 1961-09-01 | 1966-06-28 | Electron emitter with activator of sill cide, boride or carbide of solid solu- tion of barium and at least one other alkaline earth metal | |
| JPH11339633A (en) * | 1997-11-04 | 1999-12-10 | Sony Corp | Impregnated cathode and manufacture therefor and electron gun and electronic tube |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1390243A (en) * | 1919-09-15 | 1921-09-06 | Gen Electric | Method of welding low-melting-point metals and alloys to high-melting-point metals |
| US1671953A (en) * | 1927-07-15 | 1928-05-29 | Gen Electric | Process for making x-ray anodes |
| US1904568A (en) * | 1929-05-14 | 1933-04-18 | Gen Electric | Disk-like cutting tool |
| US2121589A (en) * | 1934-06-28 | 1938-06-21 | Westinghouse Electric & Mfg Co | Emissive incandescent cathode |
| US2492142A (en) * | 1945-10-17 | 1949-12-27 | Kenneth J Germeshausen | Electric system embodying coldcathode gaseous discharge device |
| US2677873A (en) * | 1946-01-10 | 1954-05-11 | Us Navy | Method of making nickel sponge cathodes |
| NL69486C (en) * | 1947-11-26 | |||
| BE498869A (en) * | 1949-10-25 |
-
0
- NL NL91413D patent/NL91413C/xx active
- BE BE510092D patent/BE510092A/xx unknown
-
1952
- 1952-03-19 DE DEN5237A patent/DE927518C/en not_active Expired
- 1952-03-19 GB GB7101/52A patent/GB705537A/en not_active Expired
- 1952-03-20 FR FR1066084D patent/FR1066084A/en not_active Expired
- 1952-03-20 CH CH311391D patent/CH311391A/en unknown
-
1955
- 1955-12-14 US US555221A patent/US3010826A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR1066084A (en) | 1954-06-02 |
| GB705537A (en) | 1954-03-17 |
| BE510092A (en) | |
| US3010826A (en) | 1961-11-28 |
| DE927518C (en) | 1955-05-09 |
| CH311391A (en) | 1955-11-30 |