GB1031312A - Electron discharge devices - Google Patents

Electron discharge devices

Info

Publication number
GB1031312A
GB1031312A GB19340/64A GB1934064A GB1031312A GB 1031312 A GB1031312 A GB 1031312A GB 19340/64 A GB19340/64 A GB 19340/64A GB 1934064 A GB1934064 A GB 1934064A GB 1031312 A GB1031312 A GB 1031312A
Authority
GB
United Kingdom
Prior art keywords
shield
anode
envelope
film
cathode
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
GB19340/64A
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of GB1031312A publication Critical patent/GB1031312A/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
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • 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
    • H01J2893/0002—Construction arrangements of electrode systems
    • 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
    • H01J2893/0002—Construction arrangements of electrode systems
    • H01J2893/0005—Fixing of electrodes

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

1,031,312. Thermionic valves. SYLVANIA ELECTRIC PRODUCTS Inc. May 8, 1964 [June 20, 1963], No. 19340/64. Heading H1D. In a high voltage rectifier tube comprising an elongated envelope of insulating material containing a cathode 9 a tubular anode 7, and a shield 11 spaced from the anode, an annular area of the inner surface of the envelope extending between the anode and shield is coated with a metal film 13 which constitutes a radiation barrier. As shown, the shield 11 is supported by a mica spacer 23 and conductive leads 27. During manufacture a layer of the material of film 13, e.g. copper or silver, is electro-deposited on shield 11, and after assembly of the tube components within the envelope, and during the final steps of heating and evacuating the envelope and activating the cathode, the shield 11 is heated by induction to effect vapour-deposition of the metal film 13. The film may have a thickness in the range 0À5 x 10<SP>-6</SP> to 4À0 x 10<SP>-6</SP> inches, and extends from a line 35 adjacent the anode to a line 37 spaced from seals 29.
GB19340/64A 1963-06-20 1964-05-08 Electron discharge devices Expired GB1031312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US289369A US3231778A (en) 1963-06-20 1963-06-20 Signal barrier

Publications (1)

Publication Number Publication Date
GB1031312A true GB1031312A (en) 1966-06-02

Family

ID=23111249

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19340/64A Expired GB1031312A (en) 1963-06-20 1964-05-08 Electron discharge devices

Country Status (2)

Country Link
US (1) US3231778A (en)
GB (1) GB1031312A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343033A (en) * 1964-12-01 1967-09-19 Avco Corp Aid to striking an electric arc
DE1564506B1 (en) * 1966-08-27 1970-08-20 Philips Patentverwaltung High voltage high vacuum discharge tubes
CH486082A (en) * 1969-05-19 1970-02-15 Cerberus Ag Ionization fire alarms

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2183302A (en) * 1936-01-22 1939-12-12 Fernseh Ag Method for producing coatings of high ohmic resistance in the interior of vacuum tubes
US2321587A (en) * 1940-05-10 1943-06-15 Davie Electrical conductive coating
US2813215A (en) * 1954-09-15 1957-11-12 Rca Corp Electron beam tube
US3041126A (en) * 1955-02-16 1962-06-26 Gen Electric Electric discharge device and method of making
US2933633A (en) * 1955-02-16 1960-04-19 Gen Electric Electric discharge device
US3027482A (en) * 1956-11-20 1962-03-27 Rca Corp Lime glass article having a surface of reduced resistivity
US2877143A (en) * 1956-11-20 1959-03-10 Rca Corp Method of treating glass

Also Published As

Publication number Publication date
US3231778A (en) 1966-01-25

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