GB439153A - Improvements in or relating to grids for electric discharge tubes - Google Patents

Improvements in or relating to grids for electric discharge tubes

Info

Publication number
GB439153A
GB439153A GB14826/35A GB1482635A GB439153A GB 439153 A GB439153 A GB 439153A GB 14826/35 A GB14826/35 A GB 14826/35A GB 1482635 A GB1482635 A GB 1482635A GB 439153 A GB439153 A GB 439153A
Authority
GB
United Kingdom
Prior art keywords
electric discharge
grid
discharge tubes
grids
relating
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
GB14826/35A
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 GB439153A publication Critical patent/GB439153A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/38—Control electrodes, e.g. grid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0015—Non-sealed electrodes
    • H01J2893/0017—Cylindrical, helical or annular grids

Landscapes

  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

439,153. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. May 21, 1935, No. 14826. Convention date, Aug. 8, 1934. [Class 39 (i)] A self-supporting grid for electric discharge tubes comprises two or more helical wires secured to each other at some or all of the intersecting points, for example, by welding or the like. Two oppositely wound single helices 1, 2, Fig. 2, developed view, or two oppositely wound double helices 4, 5, Fig. 3, or a single and an opposed double helix, Fig. 4 (not shown), may be employed. The ends of the grid may be secured in an annular support 10, Fig. 6, having a groove 12 for the reception of the grid wires.
GB14826/35A 1934-08-08 1935-05-21 Improvements in or relating to grids for electric discharge tubes Expired GB439153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE439153X 1934-08-08

Publications (1)

Publication Number Publication Date
GB439153A true GB439153A (en) 1935-11-29

Family

ID=6507265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14826/35A Expired GB439153A (en) 1934-08-08 1935-05-21 Improvements in or relating to grids for electric discharge tubes

Country Status (1)

Country Link
GB (1) GB439153A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452069A (en) * 1945-12-29 1948-10-26 Raytheon Mfg Co Grid structure
US2738438A (en) * 1952-12-11 1956-03-13 Varian Associates Grid structure and method of making same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452069A (en) * 1945-12-29 1948-10-26 Raytheon Mfg Co Grid structure
US2738438A (en) * 1952-12-11 1956-03-13 Varian Associates Grid structure and method of making same

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