Patents by Inventor Billy R. Sewell

Billy R. Sewell 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).

  • Machine tool control system
    Patent number: 4745557
    Abstract: A machine tool setting device and control system are provided. The machine tool setting device sets the machine tool tip at a predetermined distance above a work piece by detecting when the machine tool tip intercepts an optical beam. The control system allows for the drilling of multi-ply work pieces wherein the multi-plies comprise different thicknesses and hardnesses. The drill bit translational velocity and rotational velocity are continuously controlled for optimization depending upon the type of material and thickness as a hole is drilled through the work piece.
    Type: Grant
    Filed: February 13, 1986
    Date of Patent: May 17, 1988
    Assignee: LTV Aerospace & Defense Company
    Inventors: Gary W. Pekar, Billy R. Sewell, Michael Blanc