US PATENT SUBCLASS 123 / 650
.~ Power supply, ignition coil primary, and interrupter element all in series

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

594  DF  HIGH TENSION IGNITION SYSTEM {28}
650.~ Power supply, ignition coil primary, and interrupter element all in series {6}
651  DF  .~.~> Interrupter is multiple transistor circuit
652  DF  .~.~> Interrupter is single transistor
653  DF  .~.~> Additional capacitor other than breaker point capacitor is in series with coil primary or secondary
654  DF  .~.~> Additional capacitor other than breaker point capacitor is in parallel with coil primary or secondary
655  DF  .~.~> Diode is in series with coil primary or secondary
656  DF  .~.~> Diode is in parallel with coil primary or secondary

DEFINITION

Classification: 123/650

Power supply, ignition coil primary, and interrupter element all in series:

(under subclass 594) Subject matter in which the ignition system includes an interrupter means located in series with the power supply and the primary of the ignition coil, the interrupter means starting and stopping current flow through primary coil.