Patents by Inventor Dennis E. Hamrick

Dennis E. Hamrick has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6373145
    Abstract: An electrical power generator/charging system for an electrical vehicle includes an alternator system to recharge one or more battery packs, while providing electricity to a propulsion motor when the vehicle is moving or stopped after having moved, and also maintains the maximum voltage to the electrical propulsion motor as the vehicle is driven. Specifically shaped air ducts ram air through impellers, held in reduced diameter housings, to efficiently drive a number of pulleys and belts to turn alternators at various speeds. The system includes a flywheel for use during slowing down/stopping of the vehicle, and a pulley having a freewheel/gear-changing unit to enhance the overall efficiency of the electrical generating/charging system at practically any speed. By-pass channels may be formed around the reduced-diameter housings to control air pressure in front of the impellers.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: April 16, 2002
    Inventor: Dennis E. Hamrick