Patents by Inventor David Stephen Bielawa

David Stephen Bielawa 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).

  • Pressurized gas supply and control system for actuation of active seals in turbomachinery
    Publication number: 20070295402
    Abstract: A gas supply and pressure control system delivers controlled pressurized gas according to an electrical command. The system includes a gas supply sub-system outputting a continuous high-pressure gas supply. A pressure control sub-system is provided in fluid communication with the gas supply sub-system and receives the continuous high-pressure gas supply. The pressure control sub-system provides a modulated pressure to a downstream volume, such as actuators for active seals in a turbomachinery environment, based on the electrical command.
    Type: Application
    Filed: June 21, 2006
    Publication date: December 27, 2007
    Applicant: General Electric Company
    Inventors: Shorya Awtar, David Stephen Bielawa, Mark Edward Burnett, Frederick George Baily, Norman Arnold Turnquist, Kripa Kiran Varanasi