Patents by Inventor John Wayne Rau

John Wayne Rau 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).

  • System for imparting mechanical impulse energy to the ground
    Patent number: 7364008
    Abstract: The invention relates to an apparatus and method for imparting a precise amount of impulse energy to be delivered to the ground. The apparatus includes an anvil for operative deployment against the earth a hammer operatively connected to the anvil for striking the anvil; and a control system operatively connected to the hammer for controlling the impulse energy of the hammer striking the anvil. The control system includes a linear feedback system for measuring the linear position of the hammer with respect to the anvil during a force stroke and a processor for receiving linear position data from the linear feedback system for controlling the relative speed of the hammer with respect to the anvil during a force stroke through an actuation system.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: April 29, 2008
    Assignee: 969912 Alberta Ltd.
    Inventor: John Wayne Rau