FR525521A - Device for producing free electrons in extreme vacuum - Google Patents

Device for producing free electrons in extreme vacuum

Info

Publication number
FR525521A
FR525521A FR525521A FR525521DA FR525521A FR 525521 A FR525521 A FR 525521A FR 525521 A FR525521 A FR 525521A FR 525521D A FR525521D A FR 525521DA FR 525521 A FR525521 A FR 525521A
Authority
FR
France
Prior art keywords
free electrons
producing free
extreme vacuum
extreme
vacuum
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
FR525521A
Other languages
French (fr)
Inventor
Jules Edgar Lilienfeld
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.)
JULES EDGAR LILIENFELD
Original Assignee
JULES EDGAR LILIENFELD
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 JULES EDGAR LILIENFELD filed Critical JULES EDGAR LILIENFELD
Application granted granted Critical
Publication of FR525521A publication Critical patent/FR525521A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/06—Cathodes
    • H01J35/064—Details of the emitter, e.g. material or structure
FR525521A 1919-12-12 1920-10-04 Device for producing free electrons in extreme vacuum Expired FR525521A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEL49481D DE390479C (en) 1919-12-12 1919-12-12 High vacuum pipes, in particular Roentgen pipes, valve pipes, transmitter pipes or reinforcement pipes
US364215A US1559714A (en) 1919-12-12 1920-03-08 Art of releasing electrons in vacuum discharge devices

Publications (1)

Publication Number Publication Date
FR525521A true FR525521A (en) 1921-09-23

Family

ID=25985901

Family Applications (1)

Application Number Title Priority Date Filing Date
FR525521A Expired FR525521A (en) 1919-12-12 1920-10-04 Device for producing free electrons in extreme vacuum

Country Status (7)

Country Link
US (1) US1559714A (en)
AT (1) AT93424B (en)
DE (1) DE390479C (en)
DK (1) DK29764C (en)
FR (1) FR525521A (en)
GB (1) GB155554A (en)
NL (1) NL10974C (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL44366C (en) * 1933-10-07
DE755658C (en) * 1934-06-22 1953-08-10 Siemens & Halske A G Device for introducing filler into gas or vapor discharge apparatus
US2568325A (en) * 1940-07-11 1951-09-18 Westinghouse Electric Corp Ultra high frequency generator
US2429217A (en) * 1942-05-07 1947-10-21 Electronized Chem Corp Device for treatment of matters with high-speed electrons
US2475652A (en) * 1942-08-03 1949-07-12 Sperry Corp High-frequency tube structure
US2493046A (en) * 1942-08-03 1950-01-03 Sperry Corp High-frequency electroexpansive tuning apparatus
US2416318A (en) * 1942-08-15 1947-02-25 Standard Telephones Cables Ltd Electron discharge device
US2540142A (en) * 1942-10-17 1951-02-06 Sperry Corp High-frequency tube structure and system
US2429295A (en) * 1943-03-13 1947-10-21 Westinghouse Electric Corp Tuning means for magnetrons
US2438191A (en) * 1943-06-19 1948-03-23 Westinghouse Electric Corp High-pressure modulator tube
US2428610A (en) * 1943-09-10 1947-10-07 Gen Electric Method and apparatus for manufacturing electric discharge devices
US2575334A (en) * 1944-03-14 1951-11-20 Sperry Corp High-frequency tuning apparatus
GB595615A (en) * 1945-02-27 1947-12-10 Albert Horace Atherton Improvements in or relating to apparatus for thermally-controlling the position of an element within an evacuated or gas tight envelope
US2737590A (en) * 1945-03-13 1956-03-06 Edward J Lofgren Ion source for a calutron
US2523031A (en) * 1945-06-30 1950-09-19 Gen Electric Tunable ultra high frequency tube with reflector electrode
BE474423A (en) * 1946-03-28
NL69809C (en) * 1946-05-09
US2519463A (en) * 1946-08-09 1950-08-22 Bell Telephone Lab Incorproate Mercury type relay
CH265966A (en) * 1946-10-04 1949-12-31 Csf Sealed disc electronic discharge tube comprising an axially adjustable emissive cathode.
US2886736A (en) * 1954-02-02 1959-05-12 Research Corp Current rectifier
US2740915A (en) * 1954-10-18 1956-04-03 Jennings Radio Mfg Corp Adjustable spark gap

Also Published As

Publication number Publication date
DE390479C (en) 1924-02-19
US1559714A (en) 1925-11-03
NL10974C (en) 1924-07-15
AT93424B (en) 1923-07-10
GB155554A (en) 1921-05-26
DK29764C (en) 1922-06-19

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