GB1269143A - Method of mounting a heater in a tubular cathode - Google Patents

Method of mounting a heater in a tubular cathode

Info

Publication number
GB1269143A
GB1269143A GB46544/69A GB4654469A GB1269143A GB 1269143 A GB1269143 A GB 1269143A GB 46544/69 A GB46544/69 A GB 46544/69A GB 4654469 A GB4654469 A GB 4654469A GB 1269143 A GB1269143 A GB 1269143A
Authority
GB
United Kingdom
Prior art keywords
heater
cathode
tab
arms
sept
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
GB46544/69A
Inventor
Carl Leonard Ii Lundvall
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 GB1269143A publication Critical patent/GB1269143A/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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/04—Cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

1,269,143. Thermionic cathode constructions. RCA CORPORATION. 22 Sept., 1969 [24 Sept., 1968], No. 46544/69. Heading HID. [Also in Division G1] A longitudinal heater 26 is mounted in a tubular cathode 11, e.g. of a three gun colour cathode ray tube, by attaching a U-shaped metal tab 68 to the wire legs 28, 30 of the heater and inserting it into the open end 12 of the cathode and applying a predetermined calibrated force, Fig. 5 (not shown), to the tab to urge the heater 26 into contact with the closed end 14 of the cathode, each arm 32, 33 of the tab is then fixed to a respective support 34, 36 and the portion of the U-shaped tab which joins the arms 32, 33 is removed to electrically isolate the arms from each other except through the heater. Preferably the tab arms 32, 33 are close enough so that the wire legs 28, 30 lie within the projection of the open end of the cathode. Each heater and tab assembly is made of similar dimensions so that, for example, the three cathodes of a three gun C.R.T. operate under identical conditions for the same heater current and the three guns may be mounted such that they are electrically connected in series, Fig. 2 (not shown). The cathode 11 is supported by tubular flared member 16, 18, 19 to two glass supports 22, 24 to which also is attached the heater supports 34, 36.
GB46544/69A 1968-09-24 1969-09-22 Method of mounting a heater in a tubular cathode Expired GB1269143A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76208568A 1968-09-24 1968-09-24

Publications (1)

Publication Number Publication Date
GB1269143A true GB1269143A (en) 1972-04-06

Family

ID=25064071

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46544/69A Expired GB1269143A (en) 1968-09-24 1969-09-22 Method of mounting a heater in a tubular cathode

Country Status (5)

Country Link
US (1) US3555640A (en)
DE (1) DE1948110C3 (en)
FR (1) FR2018735A1 (en)
GB (1) GB1269143A (en)
NL (1) NL153017B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159288A (en) * 1984-05-18 1985-11-27 Krupp Gmbh Measuring the force of adhesion of taper crowns
GB2184060A (en) * 1985-12-02 1987-06-17 British Gas Plc Clamp for a component & a pipe to be joined
GB2232528A (en) * 1989-06-05 1990-12-12 Samsung Electronic Devices Supporting structure for heater of electron gun

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734869C2 (en) * 1977-08-03 1982-09-02 Standard Elektrik Lorenz Ag, 7000 Stuttgart Heater connection bracket for cathode ray tubes
US4789807A (en) * 1987-08-31 1988-12-06 Rca Licensing Corp. Electron gun assembly having a reinforced heater tab
US4931691A (en) * 1988-08-30 1990-06-05 Rca Licensing Corp. Electron gun assembly having a reinforced heater tab with locating means

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159288A (en) * 1984-05-18 1985-11-27 Krupp Gmbh Measuring the force of adhesion of taper crowns
US4679444A (en) * 1984-05-18 1987-07-14 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Instrument for measuring the cohesion force in dental cone crowns
GB2184060A (en) * 1985-12-02 1987-06-17 British Gas Plc Clamp for a component & a pipe to be joined
GB2232528A (en) * 1989-06-05 1990-12-12 Samsung Electronic Devices Supporting structure for heater of electron gun
GB2232528B (en) * 1989-06-05 1994-05-18 Samsung Electronic Devices Connecting member for heater of electron gun

Also Published As

Publication number Publication date
NL6914393A (en) 1970-03-26
FR2018735A1 (en) 1970-06-26
DE1948110A1 (en) 1971-01-21
DE1948110B2 (en) 1973-04-05
US3555640A (en) 1971-01-19
DE1948110C3 (en) 1973-10-25
NL153017B (en) 1977-04-15

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