GB877756A - Cathode heater - Google Patents

Cathode heater

Info

Publication number
GB877756A
GB877756A GB4357859A GB4357859A GB877756A GB 877756 A GB877756 A GB 877756A GB 4357859 A GB4357859 A GB 4357859A GB 4357859 A GB4357859 A GB 4357859A GB 877756 A GB877756 A GB 877756A
Authority
GB
United Kingdom
Prior art keywords
heater
cathode
strip
cathode heater
germeshausen
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
GB4357859A
Inventor
Daniel Riley
Seymour Goldberg
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.)
PerkinElmer Inc
Original Assignee
Edgerton Germeshausen and Grier 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
Priority to NL246837D priority Critical patent/NL246837A/xx
Application filed by Edgerton Germeshausen and Grier Inc filed Critical Edgerton Germeshausen and Grier Inc
Priority to GB4357859A priority patent/GB877756A/en
Priority to DEE18699A priority patent/DE1143589B/en
Publication of GB877756A publication Critical patent/GB877756A/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
    • H01J1/22—Heaters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H01J17/063—Indirectly heated cathodes, e.g. by the discharge itself

Landscapes

  • Resistance Heating (AREA)

Abstract

877,756. Cathode heaters. EDGERTON, GERMESHAUSEN & GRIER Inc. Dec. 22. 1959, No. 43578/59. Class 39(3). [Also in Group XL(a)] A cathode heater comprises a continuous planar strip of conductive material having successively disposed portions which are parallel to, but spaced from, one another and' lie in a common plane. The strip is covered throughout with an insulating coating, e.g. by spraying with atomized molten alumina. the ;heater, which may be cut from sheet molybdenum, may be of the forms shown, or may be of zig-zag form with a rectangular peripheral configuration or a single spiral. To obtain the desired electrical resistance the heater may be dipped in an acid solution. Specification 848,340 is referred to.
GB4357859A 1959-12-22 1959-12-22 Cathode heater Expired GB877756A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL246837D NL246837A (en) 1959-12-22
GB4357859A GB877756A (en) 1959-12-22 1959-12-22 Cathode heater
DEE18699A DE1143589B (en) 1959-12-22 1959-12-28 Method of manufacturing a heater for cathodes of electrical discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4357859A GB877756A (en) 1959-12-22 1959-12-22 Cathode heater

Publications (1)

Publication Number Publication Date
GB877756A true GB877756A (en) 1961-09-20

Family

ID=10429377

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4357859A Expired GB877756A (en) 1959-12-22 1959-12-22 Cathode heater

Country Status (2)

Country Link
GB (1) GB877756A (en)
NL (1) NL246837A (en)

Also Published As

Publication number Publication date
NL246837A (en)

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