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Motorized devices

  • US 10,111,720 B2
  • Filed: 06/05/2017
  • Issued: 10/30/2018
  • Est. Priority Date: 10/04/2010
  • Status: Active Grant
First Claim
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1. A mobile device comprising:

  • a motor, wherein;

    a. the motor comprises a lead car, an intermediate car, and a trail car;

    b. each of the lead car, the intermediate car, and the trail car comprises an electromagnet, wherein each of the electromagnets is independently operable;

    c. the intermediate car weighs less than the lead car;

    d. the intermediate car weighs less than the trail car;

    e. the lead car weighs less than a combined weight of the intermediate car and the trail car; and

    f. the trail car weighs less than a combined weight of the intermediate car and the lead car.

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