Patents by Inventor Stephen P. Dobies

Stephen P. Dobies 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).

  • Automatic drain for compressed air system
    Publication number: 20030116191
    Abstract: An automatic drain for a compressed air system can have a valve body containing an internal fluid reservoir which communicates via a main air inlet passage with a compressed air container such that fluid can flow from the air container into the internal reservoir. A filter can be provided prior to the internal reservoir so that only fluid passes into the internal reservoir. Accumulated fluid in the internal reservoir can be drained through a discharge port regulated by a valve assembly which can be opened and closed by a controller in response to the level of fluid accumulated in the internal reservoir as detected by a sensor.
    Type: Application
    Filed: November 19, 2002
    Publication date: June 26, 2003
    Inventors: Stephen P. Dobies, Aubra D. McKisic, Paul H. Dawson
  • Locomotive air processing apparatus
    Patent number: 6126724
    Abstract: An apparatus for utilizing semi-permeable membrane technology to process compressed air in such applications as a compressed air system of a railway locomotive.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: October 3, 2000
    Assignee: Hansen Inc.
    Inventors: Shawn Martin, Stephen P. Dobies