Patents by Inventor Jonathan M. Parsons

Jonathan M. Parsons 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).

  • Turbomachine tip clearance sensor
    Patent number: 4813273
    Abstract: An axially extending electrode (16) is provided on a casing liner (10) such that a capacitor is formed, with rotor blades constituting the other electrode, and the tip clearance therebetween forming a dielectric. The axial length of the electrode (16) exceeds that swept by the rotor blade tips and is sufficient for any axial movement of the rotor blades under operating conditions not to affect the capacitance of the sensor.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: March 21, 1989
    Assignee: Rolls-Royce plc
    Inventor: Jonathan M. Parsons