Patents by Inventor H. Clayton McDonald

H. Clayton McDonald 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).

  • Water exercise device and method
    Patent number: 6712741
    Abstract: An exercise device for use in water is made of a buoyant material and can support a user positioned in a body of water. Two opposed end portions are connected by a narrowed central portion that is dimensioned to fit between the upper leg portions of the user. In use, the user places the central portion between the legs, causing the end portions to be buoyed upward and enveloping the user's trunk. Positioned thus, the user is supported in an upright position with the limbs free to move, which is suitable for performing an exercise.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: March 30, 2004
    Inventor: H. Clayton McDonald
  • Water exercise method
    Patent number: 5921898
    Abstract: An exercise device for use in water is made of a material adapted for floating and has sufficient buoyancy to support a user positioned in a body of water. Two opposed end portions are connected by a narrowed central portion that is dimensioned to fit between the upper leg portions of the user. In use the user places the central portion between the legs, causing the end portions to be buoyed upward and enveloping the user's trunk. Positioned thus, the user is supported in an upright position with the limbs free to move, which is suitable for performing an exercise.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: July 13, 1999
    Inventor: H. Clayton McDonald