GB1338244A - Demagnetising device for colour television tubes - Google Patents

Demagnetising device for colour television tubes

Info

Publication number
GB1338244A
GB1338244A GB5600370A GB5600370A GB1338244A GB 1338244 A GB1338244 A GB 1338244A GB 5600370 A GB5600370 A GB 5600370A GB 5600370 A GB5600370 A GB 5600370A GB 1338244 A GB1338244 A GB 1338244A
Authority
GB
United Kingdom
Prior art keywords
supported
tube
colour television
nov
hooks
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
GB5600370A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1338244A publication Critical patent/GB1338244A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0046—Preventing or cancelling fields within the enclosure
    • H01J2229/0053—Demagnetisation

Abstract

1338244 Degaussing cathode-ray tube apparatus LICENTIA PATENT-VERWALTUNGSGmbH 25 Nov 1970 [26 Nov 1969] 56003/70 Heading H4T A demagnetizing coil for a colour television picture tube is formed from a plurality of turns of thermoplastic coated wire which, after shaping and setting by heat treatment is positioned and supported on the tube. In practice two identical coils 3, 4 (Fig. 2) are produced and in one embodiment (Fig. 1) supported on the tube by hooks 6 and projections 7 or notches 8 the inner positions being joined by springs 9. In a second embodiment (Fig. 3) the coils 3, 4 are supported by plastic hooks 12 fastened in openings 11 in the anti-implosion band 10. An asymmetrical arrangement may be employed to create a field free zone in the vicinity of the EHT connection. Terminals are provided for the supply of a suitable demagnetizing A.C. potential.
GB5600370A 1969-11-26 1970-11-25 Demagnetising device for colour television tubes Expired GB1338244A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19696945729 DE6945729U (en) 1969-11-26 1969-11-26 FACTORY TELEVISION TUBES WITH DEMAGNETIZING DEVICE

Publications (1)

Publication Number Publication Date
GB1338244A true GB1338244A (en) 1973-11-21

Family

ID=6606618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5600370A Expired GB1338244A (en) 1969-11-26 1970-11-25 Demagnetising device for colour television tubes

Country Status (2)

Country Link
DE (1) DE6945729U (en)
GB (1) GB1338244A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202116A (en) * 1987-03-11 1988-09-14 Sony Corp Extended anti-implosion ring is magnetic shield and supports degaussing coils
US4864192A (en) * 1987-11-09 1989-09-05 General Electric Company CRT magnetic field compensation
US5038078A (en) * 1989-06-05 1991-08-06 Rca Licensing Corporation Degaussing coil attachment arrangement
EP0527057A1 (en) * 1991-08-07 1993-02-10 Sony Corporation Cathode-ray tube having degaussing coils with flat portions on an implosion-resistant band

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3704341A1 (en) * 1987-02-12 1988-08-25 Electronic Werke Deutschland DEVICE FOR HOLDING THE DE-MAGNETIZING COIL ON THE PICTURE TUBE
DE8716945U1 (en) * 1987-12-21 1988-02-25 Lackdraht Union Gmbh, 2838 Sulingen, De

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202116A (en) * 1987-03-11 1988-09-14 Sony Corp Extended anti-implosion ring is magnetic shield and supports degaussing coils
DE3807125A1 (en) * 1987-03-11 1988-09-22 Sony Corp CATHODE RAY TUBES IN IMPLOSION-PROOF DESIGN
US4858016A (en) * 1987-03-11 1989-08-15 Sony Corporation Cathode ray tube having an improved implosion proof structure
GB2202116B (en) * 1987-03-11 1991-02-13 Sony Corp Cathode ray tubes having an implosion proof structure
US4864192A (en) * 1987-11-09 1989-09-05 General Electric Company CRT magnetic field compensation
US5038078A (en) * 1989-06-05 1991-08-06 Rca Licensing Corporation Degaussing coil attachment arrangement
EP0527057A1 (en) * 1991-08-07 1993-02-10 Sony Corporation Cathode-ray tube having degaussing coils with flat portions on an implosion-resistant band

Also Published As

Publication number Publication date
DE6945729U (en) 1970-04-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees