Patents by Inventor James Patrick Rice

James Patrick Rice 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 and method for creating and utilizing a sinusoidal based pattern sensor to achieve precise positioning of a movable element
    Patent number: 5949066
    Abstract: A position sensor and a method of creating the same which sensor has an incoherent light source, multiple light detectors and a sinusoidal pattern that can be directly installed to the sensor. The light source and detectors are positioned along the axis of motion of the element whose position is to be determined. In a device containing such a movable target element, light from the sensor is directed through the sinusoidal pattern to and reflected from a periodic reflection profile to create detectable sinusoid signals that can be used for positioning purposes.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: September 7, 1999
    Assignee: O.R. Technology, Inc.
    Inventors: James Patrick Rice, David Martin Perry, Curtis Alan Shuman, Peter Joseph Van Laanen