FR51138E - Improvements to thermionic discharge devices - Google Patents

Improvements to thermionic discharge devices

Info

Publication number
FR51138E
FR51138E FR51138DA FR51138E FR 51138 E FR51138 E FR 51138E FR 51138D A FR51138D A FR 51138DA FR 51138 E FR51138 E FR 51138E
Authority
FR
France
Prior art keywords
discharge devices
thermionic discharge
thermionic
devices
discharge
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
Other languages
French (fr)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR51138E publication Critical patent/FR51138E/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
FR51138D 1938-11-30 1940-03-11 Improvements to thermionic discharge devices Expired FR51138E (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
FR51138E true FR51138E (en) 1941-08-08

Family

ID=42358497

Family Applications (2)

Application Number Title Priority Date Filing Date
FR861969D Expired FR861969A (en) 1938-11-30 1939-11-30 Improvements to thermionic discharge devices
FR51138D Expired FR51138E (en) 1938-11-30 1940-03-11 Improvements to thermionic discharge devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR861969D Expired FR861969A (en) 1938-11-30 1939-11-30 Improvements to thermionic discharge devices

Country Status (5)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE477491A (en) * 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 (en) * 1951-10-12 1957-04-18 Philips Nv Electric discharge tubes with mercury cathode and gas filling
DE1018164B (en) * 1952-12-04 1957-10-24 Siemens Ag Gas discharge tubes
GB931059A (en) * 1961-02-10 1963-07-10 Thorn Electrical Ind Ltd Improvements in and relating to thermionic cathodes
NL141698B (en) * 1964-12-10 1974-03-15 Philips Nv INDIRECTLY HEATED CATHOD FOR AN ELECTRIC DISCHARGE TUBE.
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
FR861969A (en) 1941-02-22
US2201720A (en) 1940-05-21
US2201721A (en) 1940-05-21
US2201731A (en) 1940-05-21
NL55022C (en) 1943-08-16
US2246176A (en) 1941-06-17
BE438749A (en) 1940-10-31
GB542495A (en) 1942-01-12
GB536070A (en) 1941-05-01

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