Patents by Inventor Yvonne McDaniel

Yvonne McDaniel 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: 4211411
    Abstract: A device and method using an electromagnetic generator for generating magnetic fields to repel or attract permanent magnets which are placed in a specially configured mold comprised of a slotted non magnetic material attached to a base plate of non magnetic material. The permanent magnets are flat round disc shaped and are marked to identify polarity. The electromagnetic generator is placed beneath the mold and is energized through a momentary contact switch and a reversing selector switch for selecting the desired polarity. The electromagnetic generator is typically a coil powered by a suitable source of electric energy, typically rectified A.C. or D.C.. The reversing selector switch is employed to establish a fixed polarity while energized.
    Type: Grant
    Filed: May 19, 1977
    Date of Patent: July 8, 1980
    Inventors: Charles E. McDaniel, Yvonne McDaniel