Patents by Inventor James W. Lucas

James W. Lucas 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).

  • Publication number: 20240093663
    Abstract: A DC power plant generating DC power from a variety of engines including a Stirling cycle engine. The DC power plant includes a relatively small start-up power source that is discontinued after the engine is running. A method for producing DC power for a load including starting up an engine using power supplied by a relatively small power supply supplemented by a capacitor bank, providing output from the engine to a generator, producing alternating current (AC) power by the generator, converting the AC power to direct current (DC) power, disabling output of the DC power during a first set of pre-selected conditions, limiting a rate of change of current of the DC power during a second set of pre-selected conditions, reducing conducted and radiated emissions of the DC power, disconnecting the DC power from the load under a third set of pre-selected conditions, and providing the DC power to the load.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 21, 2024
    Inventors: Andrew A. Schnellinger, James R. Lowell, Bryan A. Finseth, Christopher L. Barber, Jason M. Sachs, Donald J. Lucas, Shannon Prescott, Jeffrey W. Kite, Andras K. Fekete, Douglas R. Adams
  • Patent number: 4156561
    Abstract: A first lens system projects an image onto an optical director which converges the light from the image into a second lens system which reprojects the image onto a screen to be viewed by an audience.
    Type: Grant
    Filed: October 10, 1966
    Date of Patent: May 29, 1979
    Assignee: Bell & Howell Company
    Inventor: James W. Lucas
  • Patent number: D437442
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: February 6, 2001
    Inventor: James W. Lucas
  • Patent number: D418077
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: December 28, 1999
    Inventor: James W. Lucas