NL69486C - - Google Patents

Info

Publication number
NL69486C
NL69486C NL69486DA NL69486C NL 69486 C NL69486 C NL 69486C NL 69486D A NL69486D A NL 69486DA NL 69486 C NL69486 C NL 69486C
Authority
NL
Netherlands
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.)
Publication of NL69486C publication Critical patent/NL69486C/xx

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
NL69486D 1947-11-26 NL69486C (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL69486C true NL69486C (en)

Family

ID=19781994

Family Applications (1)

Application Number Title Priority Date Filing Date
NL69486D NL69486C (en) 1947-11-26

Country Status (6)

Country Link
US (1) US2543728A (en)
BE (1) BE486002A (en)
CH (3) CH274441A (en)
FR (1) FR975422A (en)
GB (1) GB641581A (en)
NL (1) NL69486C (en)

Families Citing this family (47)

* 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
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
NL91413C (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.
NL91131C (en) * 1951-11-29
BE515835A (en) * 1951-11-29
BE515834A (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
BE519027A (en) * 1952-04-09
DE972442C (en) * 1952-05-27 1959-07-23 Siemens Ag Holder for a cathode for electrical discharge vessels
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
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
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
BE525821A (en) * 1953-01-19
BE526506A (en) * 1953-02-16
BE526781A (en) * 1953-02-26
NL89470C (en) * 1953-03-04
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
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
NL96853C (en) * 1953-09-24
BE533455A (en) * 1953-11-18
NL108979C (en) * 1953-12-17
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
DE1275692B (en) * 1963-10-14 1968-08-22 Litton Industries Inc Process for the production of a supply cathode for electron tubes
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

Also Published As

Publication number Publication date
BE486002A (en)
CH272699A (en) 1950-12-31
US2543728A (en) 1951-02-27
GB641581A (en) 1950-08-16
FR975422A (en) 1951-03-05
CH274441A (en) 1951-03-31
CH274440A (en) 1951-03-31

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