NL67617C - - Google Patents
Info
- Publication number
- NL67617C NL67617C NL67617DA NL67617C NL 67617 C NL67617 C NL 67617C NL 67617D A NL67617D A NL 67617DA NL 67617 C NL67617 C NL 67617C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
- H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
- H01J41/14—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes
- H01J41/16—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes using gettering substances
-
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/94—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL256336X | 1945-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL67617C true NL67617C (fr) |
Family
ID=19781323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL67617D NL67617C (fr) | 1945-09-15 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2547200A (fr) |
| BE (1) | BE469199A (fr) |
| CH (1) | CH256336A (fr) |
| DE (1) | DE812942C (fr) |
| FR (1) | FR936837A (fr) |
| GB (1) | GB616585A (fr) |
| NL (1) | NL67617C (fr) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2656489A (en) * | 1951-04-14 | 1953-10-20 | Bell Telephone Labor Inc | Electron discharge device and processing thereof |
| FR945456A (fr) * | 1951-08-08 | 1949-05-05 | Thomson Houston Comp Francaise | Perfectionnements aux tubes à décharge |
| BE530043A (fr) * | 1953-07-02 | |||
| US2843777A (en) * | 1954-01-28 | 1958-07-15 | Rauland Corp | Cathode-ray tubes |
| US2919380A (en) * | 1957-07-23 | 1959-12-29 | Philco Corp | Electron discharge devices |
| US2956192A (en) * | 1959-01-02 | 1960-10-11 | Eitel Mccullough Inc | Gettering electron gun |
| DE1213062B (de) * | 1959-12-05 | 1966-03-24 | Deutsche Bundespost | Verfahren zur Herstellung einer Flaechenoxyd-kathode fuer Elektronenstrahlroehren |
| US3082346A (en) * | 1960-05-19 | 1963-03-19 | Gen Electric | Resilient getter supporting arrangement |
| US3225910A (en) * | 1961-02-04 | 1965-12-28 | Porta Paolo Della | Getter devices with non-evaporated gettering material, for maintaining vacuum in electronic tubes |
| DE1212227B (de) * | 1961-12-13 | 1966-03-10 | Deutsche Bundespost | Flaechenkathode fuer Elektronenstrahlroehren |
| US3250936A (en) * | 1962-06-28 | 1966-05-10 | Gen Electric | Electron gun assembly with long life annular cathode curvilinear electron flow |
| US3293481A (en) * | 1963-07-08 | 1966-12-20 | Varian Associates | High frequency electron discharge device |
| DE1539135A1 (de) * | 1965-06-30 | 1969-08-28 | Siemens Ag | Pumpanordnung mit Hilfskathode fuer elektrische Entladungsgefaesse |
| US3388275A (en) * | 1966-06-08 | 1968-06-11 | Battelle Development Corp | Cathode provided with ion-producing material for decreasing space charge |
| EP0455162B1 (fr) * | 1990-04-28 | 1996-01-10 | Sony Corporation | Dispositif de visualisation plat |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1632080A (en) * | 1921-12-27 | 1927-06-14 | Western Electric Co | Electric discharge device |
| GB297332A (en) * | 1927-09-17 | 1929-08-29 | Aeg | Improvements in or relating to thermionic valves |
| BE366084A (fr) * | 1928-12-15 | |||
| US1991279A (en) * | 1930-10-31 | 1935-02-12 | Philips Nv | Gas filled discharge tube |
| US2038341A (en) * | 1934-06-07 | 1936-04-21 | Aeg | Electron discharge device |
-
0
- NL NL67617D patent/NL67617C/xx active
- BE BE469199D patent/BE469199A/xx unknown
-
1946
- 1946-09-13 GB GB27538/46A patent/GB616585A/en not_active Expired
- 1946-11-07 CH CH256336D patent/CH256336A/fr unknown
- 1946-11-13 FR FR936837D patent/FR936837A/fr not_active Expired
- 1946-11-22 US US711636A patent/US2547200A/en not_active Expired - Lifetime
-
1948
- 1948-11-05 DE DEP20775A patent/DE812942C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2547200A (en) | 1951-04-03 |
| CH256336A (fr) | 1948-08-15 |
| DE812942C (de) | 1951-09-06 |
| FR936837A (fr) | 1948-07-30 |
| GB616585A (en) | 1949-01-24 |
| BE469199A (fr) |