GB1032208A - Improvements in or relating to electron discharge device - Google Patents

Improvements in or relating to electron discharge device

Info

Publication number
GB1032208A
GB1032208A GB45199/63A GB4519963A GB1032208A GB 1032208 A GB1032208 A GB 1032208A GB 45199/63 A GB45199/63 A GB 45199/63A GB 4519963 A GB4519963 A GB 4519963A GB 1032208 A GB1032208 A GB 1032208A
Authority
GB
United Kingdom
Prior art keywords
tube
shield
tubes
transverse
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
GB45199/63A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1032208A publication Critical patent/GB1032208A/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

Landscapes

  • Discharge Lamp (AREA)

Abstract

1,032,208. Thermionic valves. WESTING- HOUSE ELECTRIC CORPORATION. Nov. 15, 1963 [Nov. 16, 1962], No. 45199/63. Heading H1D. A thermionic cathode comprises a heater 38 disposed between inner and outer tubes 30, 32, the space between the tubes being closed at one end 36, and a transverse shield 44, connected to one tube and spaced from the other, being provided at the other end. The cathode preferably has a length to diameter ratio of less than 2: 1 so that it is less susceptible to microphony. As shown, a nickel tube 32, carrying emissive coating 34, is supported from inner tube 30 by a washer 36. The cathode is secured to a mica, ceramic or glass support disc 24 by a rivet 42 which is a force fit within tube 30. Both rivet 42 and tube 30 are of low heat conducting material such as " Inconel " (Registered Trade Mark). Insulating disc 24 is supported by pins 26. Washer 36 may be replaced by a transverse flange integral with one of the tubes 30, 32 and welded to the other. Insulating disc 24 may act as the transverse heat shield, shield 44 being omitted.
GB45199/63A 1962-11-16 1963-11-15 Improvements in or relating to electron discharge device Expired GB1032208A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US238229A US3195003A (en) 1962-11-16 1962-11-16 Electron discharge device

Publications (1)

Publication Number Publication Date
GB1032208A true GB1032208A (en) 1966-06-08

Family

ID=22897000

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45199/63A Expired GB1032208A (en) 1962-11-16 1963-11-15 Improvements in or relating to electron discharge device

Country Status (2)

Country Link
US (1) US3195003A (en)
GB (1) GB1032208A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569769A (en) * 1967-12-27 1971-03-09 Tokyo Shibaura Electric Co Cathode with elongated heat dissipating and supporting member
DE3014216A1 (en) * 1980-04-14 1981-10-15 Philips Patentverwaltung Gmbh, 2000 Hamburg GLOWING CATHODE FOR AN ELECTRON TUBE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1955537A (en) * 1930-02-11 1934-04-17 Gen Electric Electron emitting cathode
US2650997A (en) * 1950-12-29 1953-09-01 Chatham Electronics Corp Heat shielded cathode
US2813227A (en) * 1951-10-19 1957-11-12 Rca Corp Quick heating cathode for electron discharge device
GB810202A (en) * 1955-06-10 1959-03-11 Vickers Electrical Co Ltd Improvements relating to thermionic cathodes for electron discharge devices

Also Published As

Publication number Publication date
US3195003A (en) 1965-07-13

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