GB536070A - Improvements in and relating to thermionic discharge devices - Google Patents

Improvements in and relating to thermionic discharge devices

Info

Publication number
GB536070A
GB536070A GB31133/39A GB3113339A GB536070A GB 536070 A GB536070 A GB 536070A GB 31133/39 A GB31133/39 A GB 31133/39A GB 3113339 A GB3113339 A GB 3113339A GB 536070 A GB536070 A GB 536070A
Authority
GB
United Kingdom
Prior art keywords
emissive
wire
casing
heater
emissive surfaces
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB31133/39A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB536070A publication Critical patent/GB536070A/en
Expired legal-status Critical Current

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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape
    • 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
    • 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
    • H01J17/063—Indirectly heated cathodes, e.g. by the discharge itself

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Solid Thermionic Cathode (AREA)
  • Details Of Valves (AREA)
  • Discharge Lamp (AREA)
GB31133/39A 1938-11-30 1939-11-30 Improvements in and relating to thermionic discharge devices Expired GB536070A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US243101A US2201731A (en) 1938-11-30 1938-11-30 Discharge tube electrode assembly
US261395A US2201720A (en) 1938-11-30 1939-03-11 Thermionic cathode structure
US266803A US2246176A (en) 1938-11-30 1939-04-08 Thermionic discharge device
US283803A US2201721A (en) 1938-11-30 1939-07-11 Thermionic cathode structure

Publications (1)

Publication Number Publication Date
GB536070A true GB536070A (en) 1941-05-01

Family

ID=42358497

Family Applications (2)

Application Number Title Priority Date Filing Date
GB31133/39A Expired GB536070A (en) 1938-11-30 1939-11-30 Improvements in and relating to thermionic discharge devices
GB11440/40A Expired GB542495A (en) 1938-11-30 1940-07-09 Improvements in thermionic cathode structures for electric discharge devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB11440/40A Expired GB542495A (en) 1938-11-30 1940-07-09 Improvements in thermionic cathode structures for electric discharge devices

Country Status (5)

Country Link
US (4) US2201731A (enrdf_load_stackoverflow)
BE (1) BE438749A (enrdf_load_stackoverflow)
FR (2) FR861969A (enrdf_load_stackoverflow)
GB (2) GB536070A (enrdf_load_stackoverflow)
NL (1) NL55022C (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE477491A (enrdf_load_stackoverflow) * 1943-05-28
US2456649A (en) * 1943-06-12 1948-12-21 Glenn F Rouse Cathode
US2675498A (en) * 1948-12-07 1954-04-13 Raytheon Mfg Co Cathode for electron discharge devices
US2605432A (en) * 1949-10-19 1952-07-29 Electrons Inc Indirectly heated cathode structure
US2647216A (en) * 1950-04-01 1953-07-28 Rca Corp Dispenser cathode
US2610305A (en) * 1951-01-05 1952-09-09 Chatham Electronics Corp Control electrode for discharge tubes
DE962188C (de) * 1951-10-12 1957-04-18 Philips Nv Elektrische Entladungsroehre mit Quecksilberkathode und Gasfuellung
DE1018164B (de) * 1952-12-04 1957-10-24 Siemens Ag Gasentladungsroehre
GB931059A (en) * 1961-02-10 1963-07-10 Thorn Electrical Ind Ltd Improvements in and relating to thermionic cathodes
NL141698B (nl) * 1964-12-10 1974-03-15 Philips Nv Indirect verhitte kathode voor een elektrische ontladingsbuis.
GB1204316A (en) * 1966-09-26 1970-09-03 Atomic Energy Authority Uk Improvements in or relating to electron emitting cathodes for irradiation machines
US3534218A (en) * 1967-03-30 1970-10-13 Atomic Energy Authority Uk Electron emitting cathodes for irradiation machines
US4611147A (en) * 1984-04-05 1986-09-09 The United States Of America As Represented By The United States Department Of Energy Thermionic gas switch

Also Published As

Publication number Publication date
US2201731A (en) 1940-05-21
NL55022C (enrdf_load_stackoverflow) 1943-08-16
US2201721A (en) 1940-05-21
FR51138E (fr) 1941-08-08
GB542495A (en) 1942-01-12
BE438749A (enrdf_load_stackoverflow) 1940-10-31
US2201720A (en) 1940-05-21
FR861969A (fr) 1941-02-22
US2246176A (en) 1941-06-17

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