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Electro-mechanical dynamo for C and D battery replacement

  • US 9,812,927 B2
  • Filed: 05/28/2014
  • Issued: 11/07/2017
  • Est. Priority Date: 05/28/2014
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a) a hand crank attached to a main spring;

    b) the main spring attached to a first chain of gears;

    c) the first chain of gears attached to a generator;

    d) the generator attached with wires to an electronic circuit;

    e) the first chain of gears attached to a second chain of gears;

    f) the second chain of gears attached to a clutch wheel;

    g) the clutch wheel attached to a clutch mechanism, the clutch mechanism comprising a clutch latching mechanism and a bi-directional solenoid;

    h) the clutch latching mechanism linked to the hand crank by the action of removing the winding handle from the clutch mechanism when unfolding the hand crank into the winding position;

    i) the bi-directional solenoid attached with wires to an electronic circuit controlling the activation of the clutch mechanism;

    j) the electronic circuit controlling the activation of the bi-directional solenoid, storing electricity, and providing multiple output voltages;

    k) the electronic circuit further comprising;

    a) a storage capacitor;

    b) a first under-voltage detector to detect a low voltage condition in the storage capacitor;

    c) a second under-voltage detector to detect a load on the primary power outputd) a third under-voltage detector to detect a load on a USB power output connector;

    e) an over-voltage detector to protect the electronic components;

    f) the generator attached to the electronic circuit;

    g) a voltage reversing switching matrix attached to the bi-directional solenoid.

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