Signaling techniques for DC track powered model railroads

  • US 5,448,142 A
  • Filed: 09/27/1993
  • Issued: 09/05/1995
  • Est. Priority Date: 04/13/1987
  • Status: Expired due to Term
First Claim
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1. A model train locomotive for use on a model railroad track that is coupled to a power supply for controllably applying a polarity-reversible DC track power signal to the track, the locomotive comprising:

  • a motor for driving the locomotive over the track;

    means for isolating the motor from the track so as to allow use of polarity-reversals on the track power signal for controlling remote effects; and

    means responsive to polarity-reversals on the DC track power signal for controlling remote effects without reversing the motor.

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