NL229121A - - Google Patents
Info
- Publication number
- NL229121A NL229121A NL229121DA NL229121A NL 229121 A NL229121 A NL 229121A NL 229121D A NL229121D A NL 229121DA NL 229121 A NL229121 A NL 229121A
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
- H01J23/087—Magnetic focusing arrangements
- H01J23/0876—Magnetic focusing arrangements with arrangements improving the linearity and homogeniety of the axial field, e.g. field straightener
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL229121 | 1958-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL229121A true NL229121A (https=) |
Family
ID=19751264
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL229121D NL229121A (https=) | 1958-06-27 | ||
| NL98136D NL98136C (https=) | 1958-06-27 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL98136D NL98136C (https=) | 1958-06-27 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2988659A (https=) |
| CH (1) | CH379649A (https=) |
| DE (1) | DE1106428B (https=) |
| FR (1) | FR1227990A (https=) |
| GB (1) | GB918016A (https=) |
| NL (2) | NL98136C (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3250946A (en) * | 1961-02-07 | 1966-05-10 | Philips Corp | Travelling wave tube, in which an electron beam interacts with a helical delay line, having spurious oscillation suppressing means |
| BE625032A (https=) * | 1961-11-20 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2591350A (en) * | 1947-04-26 | 1952-04-01 | Raytheon Mfg Co | Traveling-wave electron reaction device |
| BE521065A (https=) * | 1952-07-01 | |||
| US2741718A (en) * | 1953-03-10 | 1956-04-10 | Sperry Rand Corp | High frequency apparatus |
| GB755834A (en) * | 1953-03-26 | 1956-08-29 | Standard Telephones Cables Ltd | Improvements in or relating to the coupling of a helix in a travelling wave tube or the like to a waveguide |
| US2867745A (en) * | 1953-10-07 | 1959-01-06 | Bell Telephone Labor Inc | Periodic magnetic focusing system |
| US2812470A (en) * | 1954-10-22 | 1957-11-05 | Bell Telephone Labor Inc | Periodic focusing in traveling wave tubes |
| GB792002A (en) * | 1955-04-12 | 1958-03-19 | Marrison & Catherall Ltd | Improvements in centralising means for electronic devices making use of a focussed electron beam |
| NL209831A (https=) * | 1955-10-27 | |||
| NL99653C (https=) * | 1956-03-01 | |||
| US2791718A (en) * | 1956-04-23 | 1957-05-07 | Bell Telephone Labor Inc | Magnetic structure for traveling wave tubes |
-
0
- NL NL229121D patent/NL229121A/xx unknown
- NL NL98136D patent/NL98136C/xx active
-
1959
- 1959-06-04 US US818170A patent/US2988659A/en not_active Expired - Lifetime
- 1959-06-23 DE DEN16873A patent/DE1106428B/de active Pending
- 1959-06-24 CH CH7486059A patent/CH379649A/de unknown
- 1959-06-24 GB GB21690/59A patent/GB918016A/en not_active Expired
- 1959-06-25 FR FR798530A patent/FR1227990A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL98136C (https=) | |
| US2988659A (en) | 1961-06-13 |
| CH379649A (de) | 1964-07-15 |
| DE1106428B (de) | 1961-05-10 |
| GB918016A (en) | 1963-02-13 |
| FR1227990A (fr) | 1960-08-26 |