NL69250C - - Google Patents

Info

Publication number
NL69250C
NL69250C NL69250DA NL69250C NL 69250 C NL69250 C NL 69250C NL 69250D A NL69250D A NL 69250DA NL 69250 C NL69250 C NL 69250C
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 NL69250C publication Critical patent/NL69250C/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • 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
    • H01J1/24—Insulating layer or body located between heater and emissive material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
NL69250D 1946-03-05 NL69250C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR836527X 1946-03-05

Publications (1)

Publication Number Publication Date
NL69250C true NL69250C (en)

Family

ID=9298138

Family Applications (1)

Application Number Title Priority Date Filing Date
NL69250D NL69250C (en) 1946-03-05

Country Status (6)

Country Link
US (1) US2520760A (en)
CH (1) CH266493A (en)
DE (1) DE836527C (en)
FR (1) FR926598A (en)
GB (1) GB630624A (en)
NL (1) NL69250C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL102345C (en) * 1954-06-16
DE1133041B (en) * 1954-10-22 1962-07-12 Gen Electric Process for the production of a heater or cathode body consisting of a thin film for a tube heated with high frequency and the heater or cathode body produced by the process
US3097419A (en) * 1960-03-11 1963-07-16 dickson
CH539945A (en) * 1971-12-29 1973-07-31 Bbc Brown Boveri & Cie Process for the production of grid electrodes for electrical discharge vessels
GB8611967D0 (en) * 1986-05-16 1986-10-29 English Electric Valve Co Ltd Directly heated cathodes
DE4026301A1 (en) * 1990-08-20 1992-02-27 Siemens Ag ELECTRON EMITTER OF A X-RAY TUBE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2106855A (en) * 1924-02-20 1938-02-01 Westinghouse Electric & Mfg Co Space-current device
NL33511C (en) * 1926-07-07
US1961122A (en) * 1928-08-22 1934-05-29 Westinghouse Electric & Mfg Co Thermionic cathode
CH215769A (en) * 1938-12-02 1941-07-15 Lorenz C Ag Cathode for electron tubes.
US2263169A (en) * 1940-10-12 1941-11-18 Westinghouse Electric & Mfg Co Indirectly heated cathode

Also Published As

Publication number Publication date
US2520760A (en) 1950-08-29
FR926598A (en) 1947-10-06
DE836527C (en) 1952-04-15
GB630624A (en) 1949-10-18
CH266493A (en) 1950-01-31

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