Patents by Inventor Trina A. Threlkeld

Trina A. Threlkeld 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).

  • Publication number: 20070199212
    Abstract: An article of footwear includes an outer sole having a bottom walking surface and an opposed top surface, an upper member and a zipper member connected to the outer sole and to the upper member for releasably securing the upper member to the outer sole. An orthopedic appliance is received within a cavity that is disposed within the top surface of the outer sole.
    Type: Application
    Filed: February 24, 2006
    Publication date: August 30, 2007
    Inventor: Trina Threlkeld
  • Patent number: 4879833
    Abstract: A shark diverting apparatus is set forth wherein a self-propelled torpedo-like device is arranged with a self-contained power source including a signal generator for generating a signal for attracting sharks. A flotation collar is fixedly secured about a central diameter of the torpedo-like body and includes a self-inflating canister and a manually operable stem for inflating the collar to a larger size. An included value slowly releases air pressure from within the collar during the travel of the device wherein subsequent to a timer circuit activation, a signal generator is activated for attracting sharks while simultaneously air pressure is released from the flotation collar to draw sharks away from and below an individual.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: November 14, 1989
    Inventor: Trina A. Threlkeld