CH272699A - Electrical discharge tube with a cathode which is provided with a supply of emitting compounds. - Google Patents

Electrical discharge tube with a cathode which is provided with a supply of emitting compounds.

Info

Publication number
CH272699A
CH272699A CH272699DA CH272699A CH 272699 A CH272699 A CH 272699A CH 272699D A CH272699D A CH 272699DA CH 272699 A CH272699 A CH 272699A
Authority
CH
Switzerland
Prior art keywords
cathode
supply
discharge tube
electrical discharge
emitting compounds
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Publication of CH272699A publication Critical patent/CH272699A/en

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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
CH272699D 1947-11-26 1948-11-24 Electrical discharge tube with a cathode which is provided with a supply of emitting compounds. CH272699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL272699X 1947-11-26

Publications (1)

Publication Number Publication Date
CH272699A true CH272699A (en) 1950-12-31

Family

ID=19781994

Family Applications (3)

Application Number Title Priority Date Filing Date
CH274440D CH274440A (en) 1947-11-26 1948-11-24 Electrical discharge tube with a cathode which is provided with a supply of emitting compounds.
CH272699D CH272699A (en) 1947-11-26 1948-11-24 Electrical discharge tube with a cathode which is provided with a supply of emitting compounds.
CH274441D CH274441A (en) 1947-11-26 1948-11-24 Electrical discharge tube with a cathode which is provided with a supply of emitting compounds.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH274440D CH274440A (en) 1947-11-26 1948-11-24 Electrical discharge tube with a cathode which is provided with a supply of emitting compounds.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH274441D CH274441A (en) 1947-11-26 1948-11-24 Electrical discharge tube with a cathode which is provided with a supply of emitting compounds.

Country Status (6)

Country Link
US (1) US2543728A (en)
BE (1) BE486002A (en)
CH (3) CH274440A (en)
FR (1) FR975422A (en)
GB (1) GB641581A (en)
NL (1) NL69486C (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954898C (en) * 1952-07-23 1956-12-27 Siemens Ag Cathode with a supply of emissions for electrical discharge vessels
DE965431C (en) * 1952-07-18 1957-06-06 Egyesuelt Izzolampa Incandescent cathode with a space closed off by a porous sintered tungsten body in which at least one alkali metal is contained
DE1026000B (en) * 1953-01-19 1958-03-13 Philips Nv Cathode with an emission surface made of porous metal and process for its manufacture
DE1033338B (en) * 1953-12-17 1958-07-03 Siemens Ag Tubular cathode for electrical discharge vessels
DE1043519B (en) * 1953-11-18 1958-11-13 Philips Nv Cathode tubes for an electrical discharge tube
DE1052578B (en) * 1953-06-18 1959-03-12 Siemens Ag Process for the production of an oxide cathode with a porous metal layer sintered onto the surface of the cathode body
DE972442C (en) * 1952-05-27 1959-07-23 Siemens Ag Holder for a cathode for electrical discharge vessels
DE973193C (en) * 1951-11-29 1959-12-17 Philips Nv Cathode for an electrical discharge tube, which is provided with a supply of alkaline earth compounds inside
DE1075747B (en) * 1960-02-18 Deutsche Elektronik G.m.b.H., Berlin-Wilmersdorf Cylindrical supply cathode for magnetrons
DE1275692B (en) * 1963-10-14 1968-08-22 Litton Industries Inc Process for the production of a supply cathode for electron tubes

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE498869A (en) * 1949-10-25
US2671868A (en) * 1950-04-11 1954-03-09 Texas Co Gamma ray detector
US2718607A (en) * 1950-12-27 1955-09-20 Siemens Ag Dispenser-type cathode for electrical discharge tube
US2817784A (en) * 1951-01-31 1957-12-24 Siemens Ag Cathode for use in electrical discharge devices
BE510092A (en) * 1951-03-22
US2808530A (en) * 1951-04-18 1957-10-01 Siemens Ag Cathode for electrical discharge devices
US2761993A (en) * 1951-06-09 1956-09-04 Siemens Ag Cathodes for electrical discharge devices
US2774916A (en) * 1951-06-09 1956-12-18 Siemens Ag Cathodes for electrical discharge devices
US2741717A (en) * 1951-06-14 1956-04-10 Siemens Ag Dispenser type cathode having gettercoated parts
DE890390C (en) * 1951-07-12 1953-09-17 Siemens Ag Cathode for electrical discharge vessels
BE512852A (en) * 1951-07-17
CH305872A (en) * 1951-11-19 1955-03-15 Siemens Ag Cathode for electrical discharge vessels.
BE515835A (en) * 1951-11-29
NL91131C (en) * 1951-11-29
US3010046A (en) * 1952-02-26 1961-11-21 Westinghouse Electric Corp Cathode structure
US2677778A (en) * 1952-03-31 1954-05-04 Atomic Energy Commission Linear cathode
NL95281C (en) * 1952-04-09
DE1060499B (en) * 1952-05-31 1959-07-02 Egyesuelt Izzolampa Storage cathode with active substances and reducing agents in a separate room
US2783407A (en) * 1952-06-28 1957-02-26 Vierkotter Paul Source of light
US2777086A (en) * 1952-07-26 1957-01-08 Westinghouse Electric Corp Cathode
US2814754A (en) * 1952-08-28 1957-11-26 Raytheon Mfg Co Indirectly-heated cathodes
BE526506A (en) * 1953-02-16
BE526781A (en) * 1953-02-26
DE1025999B (en) * 1953-03-04 1958-03-13 Egyesuelt Izzolampa Supply cathode in which the supply, at least after activation, has a content of barium oxide
NL89470C (en) * 1953-03-04
NL96853C (en) * 1953-09-24
NL85507C (en) * 1953-12-22
US2928013A (en) * 1954-12-23 1960-03-08 Siemens Ag Electrical discharge device
US3076915A (en) * 1954-12-24 1963-02-05 Egyesuelt Izzolampa Cathode assembly and method of making same
US2931934A (en) * 1955-02-05 1960-04-05 Egyesuelt Izzolampa Indirectly heated supply cathode
US3113236A (en) * 1959-06-23 1963-12-03 Philips Corp Oxide dispenser type cathode
FR1283895A (en) * 1960-12-21 1962-02-09 Csf Cold cathode structure
US3251641A (en) * 1962-03-27 1966-05-17 Rca Corp Electron tube and method of making the same
JPS58100329A (en) * 1981-12-11 1983-06-15 Toshiba Corp Cathode structure for electron tube
US5022883A (en) * 1990-11-06 1991-06-11 The United States Of America As Represented By The Secretary Of The Army Method of making a long life high current density cathode from aluminum oxide and tungsten oxide powders
US5293410A (en) * 1991-11-27 1994-03-08 Schlumberger Technology Corporation Neutron generator
US20030025435A1 (en) * 1999-11-24 2003-02-06 Vancil Bernard K. Reservoir dispenser cathode and method of manufacture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2121589A (en) * 1934-06-28 1938-06-21 Westinghouse Electric & Mfg Co Emissive incandescent cathode

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075747B (en) * 1960-02-18 Deutsche Elektronik G.m.b.H., Berlin-Wilmersdorf Cylindrical supply cathode for magnetrons
DE973193C (en) * 1951-11-29 1959-12-17 Philips Nv Cathode for an electrical discharge tube, which is provided with a supply of alkaline earth compounds inside
DE972442C (en) * 1952-05-27 1959-07-23 Siemens Ag Holder for a cathode for electrical discharge vessels
DE965431C (en) * 1952-07-18 1957-06-06 Egyesuelt Izzolampa Incandescent cathode with a space closed off by a porous sintered tungsten body in which at least one alkali metal is contained
DE954898C (en) * 1952-07-23 1956-12-27 Siemens Ag Cathode with a supply of emissions for electrical discharge vessels
DE1026000B (en) * 1953-01-19 1958-03-13 Philips Nv Cathode with an emission surface made of porous metal and process for its manufacture
DE1052578B (en) * 1953-06-18 1959-03-12 Siemens Ag Process for the production of an oxide cathode with a porous metal layer sintered onto the surface of the cathode body
DE1043519B (en) * 1953-11-18 1958-11-13 Philips Nv Cathode tubes for an electrical discharge tube
DE1033338B (en) * 1953-12-17 1958-07-03 Siemens Ag Tubular cathode for electrical discharge vessels
DE1275692B (en) * 1963-10-14 1968-08-22 Litton Industries Inc Process for the production of a supply cathode for electron tubes

Also Published As

Publication number Publication date
FR975422A (en) 1951-03-05
US2543728A (en) 1951-02-27
BE486002A (en)
NL69486C (en)
CH274440A (en) 1951-03-31
CH274441A (en) 1951-03-31
GB641581A (en) 1950-08-16

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