NL153018B - Indirect verhitte kathode. - Google Patents
Indirect verhitte kathode.Info
- Publication number
- NL153018B NL153018B NL676702376A NL6702376A NL153018B NL 153018 B NL153018 B NL 153018B NL 676702376 A NL676702376 A NL 676702376A NL 6702376 A NL6702376 A NL 6702376A NL 153018 B NL153018 B NL 153018B
- Authority
- NL
- Netherlands
- Prior art keywords
- indirectly heated
- heated cathode
- cathode
- indirectly
- heated
- Prior art date
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
- H01J1/20—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
-
- 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
- H01J1/26—Supports for the emissive material
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL676702376A NL153018B (nl) | 1967-02-17 | 1967-02-17 | Indirect verhitte kathode. |
DE19681639341 DE1639341C3 (de) | 1967-02-17 | 1968-01-13 | Indirekt heizbare Kathode |
US701204*A US3553521A (en) | 1967-02-17 | 1968-01-29 | Indirectly heated cathode for an electron discharge tube with an insulated heating element |
FR1553520D FR1553520A (nl) | 1967-02-17 | 1968-02-13 | |
CH216568A CH468713A (de) | 1967-02-17 | 1968-02-14 | Indirekt heizbare Kathode |
AT138568A AT276576B (de) | 1967-02-17 | 1968-02-14 | Indirekt heizbare Kathode |
GB7263/68A GB1150409A (en) | 1967-02-17 | 1968-02-14 | Indirectly Heated Cathode |
ES350511A ES350511A1 (es) | 1967-02-17 | 1968-02-15 | Un dispositivo de catodo calentado indirectamente. |
BE710828D BE710828A (nl) | 1967-02-17 | 1968-02-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL676702376A NL153018B (nl) | 1967-02-17 | 1967-02-17 | Indirect verhitte kathode. |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6702376A NL6702376A (nl) | 1968-08-19 |
NL153018B true NL153018B (nl) | 1977-04-15 |
Family
ID=19799315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL676702376A NL153018B (nl) | 1967-02-17 | 1967-02-17 | Indirect verhitte kathode. |
Country Status (8)
Country | Link |
---|---|
US (1) | US3553521A (nl) |
AT (1) | AT276576B (nl) |
BE (1) | BE710828A (nl) |
CH (1) | CH468713A (nl) |
ES (1) | ES350511A1 (nl) |
FR (1) | FR1553520A (nl) |
GB (1) | GB1150409A (nl) |
NL (1) | NL153018B (nl) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3883767A (en) * | 1974-02-08 | 1975-05-13 | Gte Sylvania Inc | Heater for fast warmup cathode |
US3881126A (en) * | 1974-03-06 | 1975-04-29 | Gte Sylvania Inc | Fast warm-up cathode assembly |
JPS6023454B2 (ja) * | 1978-11-29 | 1985-06-07 | 株式会社日立製作所 | 電子管陰極 |
DE3029853C2 (de) * | 1980-08-07 | 1982-08-26 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Indirekt durch Elektronenstoß geheizte Wehneltkathode |
NL8304401A (nl) * | 1983-12-22 | 1985-07-16 | Philips Nv | Oxydkathode. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733378A (en) * | 1956-01-31 | Thermionic cathodes for electronic discharge devices | ||
US1719988A (en) * | 1923-01-26 | 1929-07-09 | Westinghouse Lamp Co | Electron device and the like adapted for alternating current |
US2878410A (en) * | 1954-11-09 | 1959-03-17 | Gen Electric | Electronic tube structure |
GB937391A (en) * | 1962-02-14 | 1963-09-18 | Mullard Ltd | Cold-cathode glow-discharge tubes |
US3268305A (en) * | 1964-08-17 | 1966-08-23 | Sylvania Electric Prod | Composite wire |
US3401297A (en) * | 1965-08-23 | 1968-09-10 | Varian Associates | Thermionic cathodes for electron discharge devices with improved refractory metal heater wires |
-
1967
- 1967-02-17 NL NL676702376A patent/NL153018B/nl not_active IP Right Cessation
-
1968
- 1968-01-29 US US701204*A patent/US3553521A/en not_active Expired - Lifetime
- 1968-02-13 FR FR1553520D patent/FR1553520A/fr not_active Expired
- 1968-02-14 CH CH216568A patent/CH468713A/de unknown
- 1968-02-14 AT AT138568A patent/AT276576B/de active
- 1968-02-14 GB GB7263/68A patent/GB1150409A/en not_active Expired
- 1968-02-15 ES ES350511A patent/ES350511A1/es not_active Expired
- 1968-02-15 BE BE710828D patent/BE710828A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR1553520A (nl) | 1969-01-10 |
NL6702376A (nl) | 1968-08-19 |
AT276576B (de) | 1969-11-25 |
ES350511A1 (es) | 1969-05-16 |
CH468713A (de) | 1969-02-15 |
US3553521A (en) | 1971-01-05 |
DE1639341A1 (de) | 1971-04-08 |
BE710828A (nl) | 1968-08-16 |
DE1639341B2 (de) | 1976-02-12 |
GB1150409A (en) | 1969-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee | ||
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: PHILIPS |