BE543391A - - Google Patents

Info

Publication number: BE543391A
Authority: BE; Belgium

Application number

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1954-12-06

Publication of BE543391A publication Critical patent/BE543391A/xx

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
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode

BE543391D 1954-12-06 BE543391A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US473386A US2813220A (en)	1954-12-06	1954-12-06	Indirectly heated cathode

Publications (1)

Publication Number	Publication Date
BE543391A true BE543391A (en)

Family

ID=23879314

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE543391D BE543391A (en)	1954-12-06

Country Status (8)

Country	Link
US (1)	US2813220A (en)
BE (1)	BE543391A (en)
CH (1)	CH336905A (en)
DE (1)	DE1039141B (en)
ES (1)	ES225387A1 (en)
FR (1)	FR1143215A (en)
GB (1)	GB793726A (en)
NL (1)	NL94233C (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL97850C (en) *	1953-08-14
US3201639A (en) *	1955-02-09	1965-08-17	Philips Corp	Thermionic dispenser cathode
US2945295A (en) *	1957-12-20	1960-07-19	Westinghouse Electric Corp	High temperature metallic joint
US3018404A (en) *	1958-03-27	1962-01-23	Raytheon Co	Electron tube cathodes
US2975320A (en) *	1958-12-03	1961-03-14	Rca Corp	Low-temperature plasma source
US2945150A (en) *	1958-12-11	1960-07-12	Gen Electric	Thermionic cathodes and methods of making
US2975322A (en) *	1958-12-29	1961-03-14	Raytheon Co	Indirectly heated cathodes
US3117249A (en) *	1960-02-16	1964-01-07	Sperry Rand Corp	Embedded heater cathode
US3134924A (en) *	1960-07-05	1964-05-26	Monsanto Co	Emissive materials of a metal matrix with molecularly dispersed additives
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
US3373307A (en) *	1963-11-21	1968-03-12	Philips Corp	Dispenser cathode
DE2842079A1 (en) *	1978-09-27	1980-04-03	Siemens Ag	SUPPLY CATHODE, ESPECIALLY METAL CAPILLARY CATHODE
JPS5652835A (en) *	1979-10-01	1981-05-12	Hitachi Ltd	Impregnated cathode
FR2494035A1 (en) *	1980-11-07	1982-05-14	Thomson Csf	THERMO-ELECTRONIC CATHODE FOR MICROFREQUENCY TUBE AND TUBE INCORPORATING SUCH A CATHODE
KR930007461B1 (en) *	1991-04-23	1993-08-11	주식회사 금성사	Method of making a dispenser type cathode
FR2683090A1 (en) *	1991-10-25	1993-04-30	Europ Composants Electron	Dispenser cathode and method of manufacture of such a cathode
KR930014673A (en) *	1991-12-20	1993-07-23	김정배	Impregnated Cathode Structure and Manufacturing Method Thereof
DE10254697A1 (en) *	2002-11-23	2004-06-03	Philips Intellectual Property & Standards Gmbh	Vacuum electron tube with oxide cathode
CN114340124B (en) *	2021-12-30	2024-02-27	中国科学院合肥物质科学研究院	Sodium ion emitter and preparation method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT174993B (en) *	1951-02-08	1953-05-26	Philips Nv	An electric discharge tube having a cathode consisting of a porous body of refractory metal and a method for producing such a cathode
AT176924B (en) *	1951-03-22	1953-12-10	Philips Nv	A method for producing a cathode for an electrical discharge tube which contains a supply of alkaline earth metal compounds inside and the wall of which consists at least partially of a porous body produced by pressing and sintering, and a cathode produced by this method
DE890390C (en) *	1951-07-12	1953-09-17	Siemens Ag	Cathode for electrical discharge vessels
NL174029B (en) *	1951-11-29		Joseph Salim Peress	HOLLOW ARTICLES FOR FOR EXAMPLE A DIVING SUIT.
BE515834A (en) *	1951-11-29
BE515835A (en) *	1951-11-29
AT180338B (en) *	1952-02-27	1954-11-25	Philips Nv	Cathode for an electric discharge tube and method for producing this cathode
AT183488B (en) *	1953-06-11	1955-10-10	Philips Nv	Method of manufacturing a cathode body for an electric discharge tube

0
- NL NL94233D patent/NL94233C/xx active
- BE BE543391D patent/BE543391A/xx unknown
1954
- 1954-12-06 US US473386A patent/US2813220A/en not_active Expired - Lifetime
1955
- 1955-12-02 GB GB34563/55A patent/GB793726A/en not_active Expired
- 1955-12-02 DE DEN11529A patent/DE1039141B/en active Pending
- 1955-12-03 ES ES0225387A patent/ES225387A1/en not_active Expired
- 1955-12-05 CH CH336905D patent/CH336905A/en unknown
- 1955-12-05 FR FR1143215D patent/FR1143215A/en not_active Expired

Also Published As

Publication number	Publication date
CH336905A (en)	1959-03-15
NL94233C (en)
DE1039141B (en)	1958-09-18
GB793726A (en)	1958-04-23
US2813220A (en)	1957-11-12
FR1143215A (en)	1957-09-27
ES225387A1 (en)	1956-02-01

Publication	Publication Date	Title
AT191484B (en)
AT192924B (en)
AT195977B (en)	1958-02-25
AT192363B (en)	1957-10-10
AT195459B (en)	1958-02-10
AT196304B (en)	1958-03-10
AT192385B (en)	1957-10-10
AT196486B (en)	1958-03-25
AT195345B (en)	1958-01-25
AT189950B (en)	1957-05-25
AT190491B (en)	1957-07-10
AT192359B (en)	1957-10-10
AT194891B (en)	1958-01-25
AT194528B (en)	1958-01-10
AT195943B (en)	1958-02-25
AT191838B (en)
AT194735B (en)	1958-01-10
AT193927B (en)	1957-12-10
AT194354B (en)	1958-01-10
AT195822B (en)	1958-02-25
AT194415B (en)	1958-01-10
AT194476B (en)	1958-01-10
AT197095B (en)	1958-04-10
AT194723B (en)	1958-01-10
AT196970B (en)	1958-04-10