CH301197A - Cathode. - Google Patents

Cathode.

Info

Publication number: CH301197A
Authority: CH; Switzerland
Prior art keywords: cathode
Prior art date: 1950-03-31

Application number

Other languages

German (de)

Inventor

Company General Electric

Original Assignee

Gen Electric

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.)

1950-03-31

Filing date

1951-03-31

Publication date

1954-08-31

1951-03-31 Application filed by Gen Electric filed Critical Gen Electric

1954-08-31 Publication of CH301197A publication Critical patent/CH301197A/en

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
- H01J1/14—Solid thermionic cathodes characterised by the material
- H01J1/148—Solid thermionic cathodes characterised by the material with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
- H01J17/066—Cold cathodes
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
- H01J2893/0065—Electrode systems
- H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Electrochemistry (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Solid Thermionic Cathode (AREA)

CH301197D 1950-03-31 1951-03-31 Cathode. CH301197A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US153212A US2639399A (en)	1950-03-31	1950-03-31	Electron emitter

Publications (1)

Publication Number	Publication Date
CH301197A true CH301197A (en)	1954-08-31

Family

ID=22546234

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH301197D CH301197A (en)	1950-03-31	1951-03-31	Cathode.

Country Status (6)

Country	Link
US (1)	US2639399A (en)
BE (1)	BE502232A (en)
CH (1)	CH301197A (en)
DE (1)	DE856666C (en)
GB (2)	GB678258A (en)
NL (1)	NL80503C (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2744073A (en) *	1952-11-22	1956-05-01	Battelle Development Corp	Thermionic emitter materials
DE971413C (en) *	1953-10-02	1959-01-22	Siemens Ag	Device for crucible zone melting
US3312856A (en) *	1963-03-26	1967-04-04	Gen Electric	Rhenium supported metallic boride cathode emitters
US3505553A (en) *	1966-05-12	1970-04-07	Philips Corp	Radio-interference-free low-pressure mercury-vapor lamp
US3440475A (en) *	1967-04-11	1969-04-22	Lokomotivbau Elektrotech	Lanthanum hexaboride cathode system for an electron beam generator
US3944866A (en) *	1974-04-08	1976-03-16	Canadian Patents & Development Ltd.	Thermionic emitter of lanthanum strontium vanadates
JPS5451776A (en) *	1977-10-03	1979-04-23	Nippon Hoso Kyokai <Nhk>	Gas discharge display panel
US4260525A (en) *	1978-11-27	1981-04-07	Rca Corporation	Single-crystal hexaborides and method of preparation
FR2445605A1 (en) *	1978-12-27	1980-07-25	Thomson Csf	DIRECT HEATING CATHODE AND HIGH FREQUENCY ELECTRONIC TUBE COMPRISING SUCH A CATHODE
DE4305558A1 (en) *	1993-02-24	1994-08-25	Asea Brown Boveri	Process for the manufacture of wires which are especially suitable for cathodes of electron tubes
US6025038A (en) *	1998-08-26	2000-02-15	Board Of Regents Of The University Of Nebraska	Method for depositing rare-earth boride onto a substrate
US6077617A (en) *	1998-08-26	2000-06-20	Board Of Regents Of The University Of Nebraska	Rare-earth boride thin film system
WO2008054451A2 (en) *	2006-02-06	2008-05-08	The University Of North Carolina At Chapel Hill	Synthesis and processing of rare-earth boride nanowires as electron emitters
DE102011013262A1 (en)	2011-03-07	2012-09-13	Adlantis Dortmund Gmbh	Electron-ionization source has photoelectrons that are generated from atmospheric-stable layer by ultra-violet source and are actuated with distance of acceleration in dimension of average free path length of gas

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1023485A (en) *	1908-11-20	1912-04-16	Orlando M Thowless	Illuminant for electrical incandescent lamps.
US2117636A (en) *	1934-03-24	1938-05-17	Gerald B Tjoflat	Thermionic electrode
US2501089A (en) *	1945-11-29	1950-03-21	Martin A Pomerantz	Thermionic electron emitter
US2502331A (en) *	1948-12-21	1950-03-28	Rca Corp	Geiger-muller counter for radioactive emission

0
- BE BE502232D patent/BE502232A/xx unknown
- NL NL80503D patent/NL80503C/xx active
1950
- 1950-03-31 US US153212A patent/US2639399A/en not_active Expired - Lifetime
1951
- 1951-03-12 GB GB5910/51A patent/GB678258A/en not_active Expired
- 1951-03-30 DE DEI3955A patent/DE856666C/en not_active Expired
- 1951-03-31 CH CH301197D patent/CH301197A/en unknown
- 1951-07-18 GB GB17063/51A patent/GB683940A/en not_active Expired

Also Published As

Publication number	Publication date
US2639399A (en)	1953-05-19
GB678258A (en)	1952-08-27
NL80503C (en)
GB683940A (en)	1952-12-10
DE856666C (en)	1952-11-24
BE502232A (en)

Publication	Publication Date	Title
CH301197A (en)	1954-08-31	Cathode.
CH293717A (en)	1953-10-15	Stylograph.
NL164631C (en)		DIESELHEIBLOK.
CH303467A (en)	1954-11-30	Telephonograph.
DK77003C (en)	1954-01-18	Bykeldynamo.
DK76037C (en)	1953-06-29	Takistoscope.
ES25191Y (en)	1951-04-16	Trumpet-pacifier.
ES22485Y (en)	1950-07-16	Table-wardrobe.
DK77806C (en)	1954-07-12	Brillantine.
DK75021C (en)	1952-11-24	Bonemaskine.
ES22209Y (en)	1950-11-01	Cabinet-file.
DK75279C (en)	1953-01-12	Kipled.
DK75319C (en)	1953-01-19	Kravlegård.
DK75684C (en)	1953-04-07	Lastebro.
DK76442C (en)	1953-09-28	Dupperulle.
ES25206Y (en)	1951-06-01	Pacifier-bottle.
ES25067Y (en)	1951-08-16	Ashtray-gong.
ES24846Y (en)	1951-05-16	Case-library.
ES24693Y (en)	1951-06-01	Bed-furniture.
ES22300Y (en)	1950-07-16	Elevator-reducer.
ES24289Y (en)	1951-04-01	Shower-sponge.
ES23644Y (en)	1951-01-01	Shirt-shorts.
ES23528Y (en)	1951-01-01	Eclipsable toy-dagger.
ES23339Y (en)	1951-05-16	Curtains-blinds.
ES22584Y (en)	1951-01-16	Lantern-liquor.