GB895337A - Improvements relating to cathode heaters - Google Patents

Improvements relating to cathode heaters

Info

Publication number
GB895337A
GB895337A GB634961A GB634961A GB895337A GB 895337 A GB895337 A GB 895337A GB 634961 A GB634961 A GB 634961A GB 634961 A GB634961 A GB 634961A GB 895337 A GB895337 A GB 895337A
Authority
GB
United Kingdom
Prior art keywords
improvements relating
cathode
cathode heaters
heaters
embraced
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
GB634961A
Inventor
Frederic William Rodbar Farrow
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB634961A priority Critical patent/GB895337A/en
Publication of GB895337A publication Critical patent/GB895337A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/08—Manufacture of heaters for indirectly-heated cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Resistance Heating (AREA)

Abstract

895,337. Cathode heaters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 21, 1961, No. 6349/61. Addition to 848,589. Class 39(3) [Also in Group XL(a)] A cathode heater, which is a modification of that described or claimed in the parent Specification comprises a linear wire heating element 1 embraced by a sleeve 2 of refractory insulating material having an external helical protuberance 3 extending along it.
GB634961A 1961-02-21 1961-02-21 Improvements relating to cathode heaters Expired GB895337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB634961A GB895337A (en) 1961-02-21 1961-02-21 Improvements relating to cathode heaters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB634961A GB895337A (en) 1961-02-21 1961-02-21 Improvements relating to cathode heaters

Publications (1)

Publication Number Publication Date
GB895337A true GB895337A (en) 1962-05-02

Family

ID=9812868

Family Applications (1)

Application Number Title Priority Date Filing Date
GB634961A Expired GB895337A (en) 1961-02-21 1961-02-21 Improvements relating to cathode heaters

Country Status (1)

Country Link
GB (1) GB895337A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002884A (en) * 1974-01-30 1977-01-11 International Standard Electric Corporation Heater element for an indirectly heated cathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002884A (en) * 1974-01-30 1977-01-11 International Standard Electric Corporation Heater element for an indirectly heated cathode

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