Patents by Inventor Timothy M. Lewis

Timothy M. Lewis 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).

  • Nonlinear motor control techniques
    Patent number: 7629764
    Abstract: The present invention provides a torque loop control method for servomotors utilizing discontinuous pulse width modulation that incorporates measuring the power factor in real time. Also included is a sine wave generator for software-based spectrum analysis.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: December 8, 2009
    Assignee: BAE Systems Land & Armaments L.P.
    Inventors: Jeffrey W. Shoemaker, Timothy M. Lewis
  • Poultry stunning with carbon dioxide
    Patent number: 5435776
    Abstract: The present invention is directed to a method for treatment of poultry prior to slaughter of the poultry. In the method, poultry are exposed to a first atmosphere having a carbon dioxide concentration sufficient to induce relaxation of the poultry for a period of time sufficient to effect the relaxation. The relaxed poultry are then immediately exposed to a second atmosphere having a carbon dioxide concentration sufficient to render the poultry unconscious. The poultry are subjected to the second atmosphere for a period of time sufficient to effect the unconsciousness, but not sufficient to kill the poultry by being exposed to the second carbon dioxide atmosphere. The poultry are then slaughtered prior to the poultry regaining consciousness.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: July 25, 1995
    Assignee: Liquid Carbonic Corporation
    Inventors: Richard L. Owen, Jose Maria N. Camacho, Timothy M. Lewis, Jim M. Venetucci