GB476090A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB476090A
GB476090A GB4680/37A GB468037A GB476090A GB 476090 A GB476090 A GB 476090A GB 4680/37 A GB4680/37 A GB 4680/37A GB 468037 A GB468037 A GB 468037A GB 476090 A GB476090 A GB 476090A
Authority
GB
United Kingdom
Prior art keywords
relating
electric discharge
discharge tubes
electrophoresis
feb
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
GB4680/37A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB476090A publication Critical patent/GB476090A/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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/26—Supports for the emissive material
    • 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
    • H01J1/14—Solid thermionic cathodes characterised by the material

Landscapes

  • Electrolytic Production Of Metals (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

476,090. Electrophoresis. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 16, 1937, No. 4680. Convention date, Feb. 19, 1936. [Class 41] [Also in Group XL] The Specification as open to inspection under Sect. 91 describes the deposition on a copper surface of a layer of barium carbonate 10-20 microns thick by electrophoresis from a non-aqueous suspension, the copper being connected as the cathode. This subjectmatter does not appear in the Specification as accepted.
GB4680/37A 1936-02-19 1937-02-16 Improvements in or relating to electric discharge tubes Expired GB476090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL476090X 1936-02-19

Publications (1)

Publication Number Publication Date
GB476090A true GB476090A (en) 1937-12-01

Family

ID=19786520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4680/37A Expired GB476090A (en) 1936-02-19 1937-02-16 Improvements in or relating to electric discharge tubes

Country Status (4)

Country Link
AT (1) AT158535B (en)
BE (1) BE420071A (en)
FR (1) FR818011A (en)
GB (1) GB476090A (en)

Also Published As

Publication number Publication date
FR818011A (en) 1937-09-16
BE420071A (en)
AT158535B (en) 1940-04-25

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