Patents by Inventor Danny R. Ollis

Danny R. Ollis 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: 20040217872
    Abstract: A filter system including a filter assembly having a housing, a filter element disposed within the housing, an inlet passage extending through the housing, and an outlet passage extending through the housing, the outlet passage in communication with the inlet passage through the filter element; and an element condition monitoring assembly including an inlet pressure transducer in communication with the inlet passage, an outlet pressure transducer in communication with the outlet passage, and a microprocessor linked to the inlet and outlet pressure transducers. The inlet pressure transducer gauges the pressure in the inlet passage, and the outlet pressure transducer gauges the pressure in the outlet passage. The microprocessor calculates a pressure differential between the inlet and outlet pressure and calculates an element condition status using at least one element condition parameter, which may include the pressure differential.
    Type: Application
    Filed: May 2, 2003
    Publication date: November 4, 2004
    Inventors: Arun K. Bhardwaj, Danny R. Ollis, Robert E. Semrad