Patents by Inventor James Oftelie

James Oftelie 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: 20160138624
    Abstract: A hydraulic power system for a mobile machine is provided. The system includes a load configured to be driven by pressurized hydraulic fluid and a hydraulic pump operatively connected for supply pressurized hydraulic fluid to the load. An engine is operatively connected and configured to drive the hydraulic pump. An aeration sensing system includes a sonic sensor system having a plurality of bands arranged on an outer surface of a line carrying pressurized hydraulic fluid and a pressure sensor for sensing a pressure of the hydraulic fluid in the line. A controller is in communication with the sonic sensor system and the pressure sensor and configured to calculate a level of aeration in the hydraulic fluid in the line during mobile machine operation using speed of sound data from the sonic sensor system and pressure data from the pressure sensor.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 19, 2016
    Applicant: CATERPILLAR INC.
    Inventor: James Oftelie