Patents by Inventor David O. Hinton

David O. Hinton 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: 4273989
    Abstract: The present invention relates to a battery powered thermal garment that is provided with a battery recharging circuit that is designed to recharge a battery package associated with said thermal garment approximately 30-40 times as fast as conventional recharging devices. In addition, the recharging circuit of the present invention is provided with a separate and direct power source for energizing the heating elements within said garment independently of said battery package. With respect to the recharging circuit, a transformer is provided for stepping down a AC voltage source and the transformer includes a dual tap, one for providing the independent power source to the garment and the other providing a recharging current. The recharging current is rectified and then directed through a silicon control rectifier to the battery package for recharging.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: June 16, 1981
    Inventors: David O. Hinton, Jean G. French
  • Patent number: 4247743
    Abstract: The present invention relates to a device that prevents unauthorized use of an appliance inasmuch as the unauthorized use results in clear evidence of such. Basically the device of the present invention comprises an electrical coupler having means for receiving a male appliance plug and male plug means for insertion into a conventional electrical outlet. A flexible tie device is provided that binds and effectively locks the male appliance plug to the electrical coupler in such a manner that the male appliance plug cannot be removed from the electrical coupler without destroying the integrity of the flexible tie device. In addition, a lock type switch is operatively associated with said electrical coupler for opening and closing the electrical circuit therein and as such, the same provides a master control for a coupled appliance.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: January 27, 1981
    Inventors: David O. Hinton, David T. Mage