Patents by Inventor Nicholas P. DAVIS

Nicholas P. DAVIS 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).

  • Oil sensor
    Patent number: 9222822
    Abstract: A system and method for measuring oil level and quality is provided. The system and method uses an alternating current (AC) to determine oil level, and a lower frequency alternating current, or a direct current (DC), to measure oil quality. The system may comprise a single sensor that is used to measure both oil quality (by providing the lower frequency alternating current or direct current) and oil level (by providing the higher frequency alternating current). Using the lower frequency AC, or DC, enables the resistance of the oil to be determined, which gives an accurate indication of the oil quality.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: December 29, 2015
    Assignee: ROLLS-ROYCE plc
    Inventors: Karn R. Sinha, Nicholas P. Davis
  • OIL SENSOR
    Publication number: 20130068015
    Abstract: A system and method for measuring oil level and quality is provided. The system and method uses an alternating current (AC) to determine oil level, and a lower frequency alternating current, or a direct current (DC), to measure oil quality. The system may comprise a single sensor that is used to measure both oil quality (by providing the lower frequency alternating current or direct current) and oil level (by providing the higher frequency alternating current). Using the lower frequency AC, or DC, enables the resistance of the oil to be determined, which gives an accurate indication of the oil quality.
    Type: Application
    Filed: August 22, 2012
    Publication date: March 21, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventors: Karn R. SINHA, Nicholas P. DAVIS