US PATENT SUBCLASS 315 / 399
.~.~ Deflection coil circuit

Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

1  DF  CATHODE RAY TUBE CIRCUITS {11}
364  DF  .~ Cathode-ray deflections circuits {16}
399.~.~ Deflection coil circuit {5}
400  DF  .~.~.~> Including a saturable element
401  DF  .~.~.~> Including a temperature responsive element
402  DF  .~.~.~> Including a voltage dependent resistor
403  DF  .~.~.~> Including an amplifier {1}
408  DF  .~.~.~> Including solid-state switch

DEFINITION

Classification: 315/399

(under subclass 364) Subject matter wherein the deflection means is a cathode-ray deflection coil, and the coil, when energized through the electrical circuit, produces a magnetic field which interacts with the cathode-ray beam when present in the tube to move the beam transverse to and simultaneously with the movement of the beam within the tube.

(1) Note. The art herein is mainly magnetic sweep circuits which will move a cathode-ray beam within a cathode-ray tube in one direction only.

SEE OR SEARCH CLASS

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

210+, for magnetic electron or ion beam deflection devices, per se.