FR943941A - Improvements made to the assembly of the thermionic valve filament - Google Patents

Improvements made to the assembly of the thermionic valve filament

Info

Publication number
FR943941A
FR943941A FR943941DA FR943941A FR 943941 A FR943941 A FR 943941A FR 943941D A FR943941D A FR 943941DA FR 943941 A FR943941 A FR 943941A
Authority
FR
France
Prior art keywords
assembly
improvements made
thermionic valve
valve filament
filament
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
Other languages
French (fr)
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.)
Hivac Ltd
Original Assignee
Hivac Ltd
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 Hivac Ltd filed Critical Hivac Ltd
Application granted granted Critical
Publication of FR943941A publication Critical patent/FR943941A/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
    • H01J1/18—Supports; Vibration-damping arrangements
FR943941D 1946-04-01 1947-03-25 Improvements made to the assembly of the thermionic valve filament Expired FR943941A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10068/46A GB619136A (en) 1946-04-01 1946-04-01 Improvements in or relating to the manufacture of cathodes of thermionic valves

Publications (1)

Publication Number Publication Date
FR943941A true FR943941A (en) 1949-03-22

Family

ID=9960847

Family Applications (1)

Application Number Title Priority Date Filing Date
FR943941D Expired FR943941A (en) 1946-04-01 1947-03-25 Improvements made to the assembly of the thermionic valve filament

Country Status (4)

Country Link
US (1) US2496530A (en)
FR (1) FR943941A (en)
GB (1) GB619136A (en)
NL (1) NL70496C (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE15278E (en) * 1922-01-31 Electron-discharge apparatus
US1013914A (en) * 1907-06-14 1912-01-09 Gen Electric Attaching filaments to leading-in wires.
US1608535A (en) * 1921-12-30 1926-11-30 Western Electric Co Electric discharge device
GB514758A (en) * 1938-06-02 1939-11-16 M O Valve Co Ltd Improvements in and relating to electric discharge devices

Also Published As

Publication number Publication date
GB619136A (en) 1949-03-04
NL70496C (en)
US2496530A (en) 1950-02-07

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