Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1987-10-08
1989-03-14
Hix, L. T.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
315 8, H01F 1300, H01H 4700
Patent
active
048129461
ABSTRACT:
A device for demagnetization of the picture tube of a television receiver and earthing of the conductive coating applied to the cone of the tube includes a demagnetization coil system (4) constituted by a bundle of insulated electric wires held together and forming at least one loop applied to the cone of the tube. The wires of the strand are held together by a tape of plastic material wound helically around them, while a bare electric wire (1) is wound helically with the same pitch as the tape. This wire is connected to earth (15, 16).
REFERENCES:
patent: 4441052 (1984-04-01), Willis
patent: 4700260 (1987-10-01), Craig et al.
Besnard Patrick
Dupaillon Jacques
Prigent Georges
Faller F. Brice
Hix L. T,.
Porterfield David
U.S. Philips Corporation
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