GB1431571A - Method of fabricating a dark heater - Google Patents

Method of fabricating a dark heater

Info

Publication number
GB1431571A
GB1431571A GB2452973A GB2452973A GB1431571A GB 1431571 A GB1431571 A GB 1431571A GB 2452973 A GB2452973 A GB 2452973A GB 2452973 A GB2452973 A GB 2452973A GB 1431571 A GB1431571 A GB 1431571A
Authority
GB
United Kingdom
Prior art keywords
coating
heater
particles
spraying
insulating material
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
GB2452973A
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of GB1431571A publication Critical patent/GB1431571A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2942—Plural coatings
    • Y10T428/2944—Free metal in coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2942—Plural coatings
    • Y10T428/2949—Glass, ceramic or metal oxide in coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Resistance Heating (AREA)
  • Solid Thermionic Cathode (AREA)
GB2452973A 1972-05-30 1973-05-23 Method of fabricating a dark heater Expired GB1431571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00257625A US3808043A (en) 1972-05-30 1972-05-30 Method of fabricating a dark heater

Publications (1)

Publication Number Publication Date
GB1431571A true GB1431571A (en) 1976-04-07

Family

ID=22977050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2452973A Expired GB1431571A (en) 1972-05-30 1973-05-23 Method of fabricating a dark heater

Country Status (8)

Country Link
US (1) US3808043A (enrdf_load_stackoverflow)
JP (1) JPS5331592B2 (enrdf_load_stackoverflow)
CA (1) CA1017208A (enrdf_load_stackoverflow)
DE (1) DE2326202B2 (enrdf_load_stackoverflow)
FR (1) FR2186802B1 (enrdf_load_stackoverflow)
GB (1) GB1431571A (enrdf_load_stackoverflow)
IT (1) IT987598B (enrdf_load_stackoverflow)
NL (1) NL7307463A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810925A (en) * 1986-05-16 1989-03-07 English Electric Valve Company Limited Directly heated cathodes

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50142717A (enrdf_load_stackoverflow) * 1974-05-10 1975-11-17
JPS50142715A (enrdf_load_stackoverflow) * 1974-05-10 1975-11-17
US4568572A (en) * 1984-12-24 1986-02-04 Texaco Inc. Method of forming an alumina coated substrate
JPH0622095B2 (ja) * 1985-05-17 1994-03-23 株式会社日立製作所 ダ−クヒ−タの製造方法
US20140041589A1 (en) 2012-08-07 2014-02-13 Veeco Instruments Inc. Heating element for a planar heater of a mocvd reactor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE557165A (enrdf_load_stackoverflow) * 1956-05-02
DE1281038B (de) * 1962-08-01 1968-10-24 Telefunken Patent Verfahren zur Herstellung einer mittelbar geheizten Kathode fuer eine elektrische Entladungsroehre
US3328201A (en) * 1964-04-27 1967-06-27 Rca Corp Heater for electron tubes
US3450565A (en) * 1964-12-18 1969-06-17 Sylvania Electric Prod Method of coating heater coils
US3401297A (en) * 1965-08-23 1968-09-10 Varian Associates Thermionic cathodes for electron discharge devices with improved refractory metal heater wires
DE1564843A1 (de) * 1966-05-24 1970-03-05 Telefunken Patent Verfahren zur Herstellung einer indirekt geheizten Kathode fuer eine elektrische Entladungsroehre
NL7109224A (enrdf_load_stackoverflow) * 1971-07-03 1973-01-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810925A (en) * 1986-05-16 1989-03-07 English Electric Valve Company Limited Directly heated cathodes

Also Published As

Publication number Publication date
CA1017208A (en) 1977-09-13
FR2186802B1 (enrdf_load_stackoverflow) 1976-04-23
FR2186802A1 (enrdf_load_stackoverflow) 1974-01-11
JPS5331592B2 (enrdf_load_stackoverflow) 1978-09-04
DE2326202A1 (de) 1973-12-20
NL7307463A (enrdf_load_stackoverflow) 1973-12-04
IT987598B (it) 1975-03-20
JPS4951868A (enrdf_load_stackoverflow) 1974-05-20
US3808043A (en) 1974-04-30
DE2326202B2 (de) 1975-07-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19930522