GB228638A - Improvements in vacuum electric tube devices - Google Patents

Improvements in vacuum electric tube devices

Info

Publication number
GB228638A
GB228638A GB28265/23A GB2826523A GB228638A GB 228638 A GB228638 A GB 228638A GB 28265/23 A GB28265/23 A GB 28265/23A GB 2826523 A GB2826523 A GB 2826523A GB 228638 A GB228638 A GB 228638A
Authority
GB
United Kingdom
Prior art keywords
filament
loop
strip
spring
main portion
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
GB28265/23A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB28265/23A priority Critical patent/GB228638A/en
Priority to DEM86757D priority patent/DE441997C/de
Priority to FR587845D priority patent/FR587845A/fr
Priority to US745194A priority patent/US1692573A/en
Publication of GB228638A publication Critical patent/GB228638A/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
    • H01J1/15—Cathodes heated directly by an electric current

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
GB28265/23A 1923-11-09 1923-11-09 Improvements in vacuum electric tube devices Expired GB228638A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB28265/23A GB228638A (en) 1923-11-09 1923-11-09 Improvements in vacuum electric tube devices
DEM86757D DE441997C (de) 1923-11-09 1924-10-18 Fadenanordnung fuer Gluehkathodenroehren
FR587845D FR587845A (fr) 1923-11-09 1924-10-22 Perfectionnements aux tubes électriques à vide
US745194A US1692573A (en) 1923-11-09 1924-10-22 Vacuum electric-tube device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28265/23A GB228638A (en) 1923-11-09 1923-11-09 Improvements in vacuum electric tube devices

Publications (1)

Publication Number Publication Date
GB228638A true GB228638A (en) 1925-02-09

Family

ID=10272908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28265/23A Expired GB228638A (en) 1923-11-09 1923-11-09 Improvements in vacuum electric tube devices

Country Status (4)

Country Link
US (1) US1692573A (de)
DE (1) DE441997C (de)
FR (1) FR587845A (de)
GB (1) GB228638A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL169806C (nl) * 1972-02-07 1982-08-16 Hoechst Ag Draadvormige sproei-elektrode voor een corona-ontladingsinrichting.
US4277718A (en) * 1979-11-07 1981-07-07 Varian Associates, Inc. Modular electron tube with carbon grid

Also Published As

Publication number Publication date
US1692573A (en) 1928-11-20
FR587845A (fr) 1925-04-24
DE441997C (de) 1927-03-18

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