Patents by Inventor Nathaniel P. O'Brien

Nathaniel P. O'Brien 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).

  • System and method of monitoring oil level in transmission system of machine
    Patent number: 9593974
    Abstract: A method of monitoring oil level in a transmission system of a machine is disclosed. The method includes monitoring an oil pressure and calculating an average value of the oil pressure over a first predetermined time duration. The method further includes calculating a variance of the oil pressure from the average value and recording a deviation if the variance is beyond a threshold variance. The method further includes detecting a low oil level condition if a count of deviations is above a threshold count within a second predetermined time duration.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: March 14, 2017
    Assignee: Caterpillar Inc.
    Inventors: Ryan D. Funk, Nathaniel P. O'Brien, Joseph R. Manley, Dustin J. Funk, Kendall R. Harrell
  • SYSTEM AND METHOD OF MONITORING OIL LEVEL IN TRANSMISSION SYSTEM OF MACHINE
    Publication number: 20160084695
    Abstract: A method of monitoring oil level in a transmission system of a machine is disclosed. The method includes monitoring an oil pressure and calculating an average value of the oil pressure over a first predetermined time duration. The method further includes calculating a variance of the oil pressure from the average value and recording a deviation if the variance is beyond a threshold variance. The method further includes detecting a low oil level condition if a count of deviations is above a threshold count within a second predetermined time duration.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 24, 2016
    Applicant: Caterpillar Inc.
    Inventors: Ryan D. Funk, Nathaniel P. O'Brien, Joseph R. Manley, Dustin J. Funk, Kendall R. Harrell