Patents by Inventor Richard A. G. Fleming

Richard A. G. Fleming 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).

  • Homing system and method for an autonomous underwater vehicle
    Patent number: 8600592
    Abstract: A submarine homing system includes an acoustic emitter configured to emit an acoustic signal comprising at least two narrow-band tones, each narrow-band tone having a respective predetermined center frequency. An acoustic receiver is configured to receive the acoustic signal from the acoustic emitter, and produce one or more receiver signals. A processor is operatively connected to the acoustic receiver. The processor is configured to process the receiver signals to calculate a direction between the acoustic receiver and the acoustic emitter.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: December 3, 2013
    Assignee: Her Majesty the Queen in Right of Canada as Represented by the Minister of National Defence
    Inventors: Garry J. Heard, Carmen E. Lucas, Nicos Pelavas, Derek A. Clark, Gordon R. Ebbeson, Richard A. G. Fleming, George Schattschneider
  • HOMING SYSTEM AND METHOD FOR AN AUTONOMOUS UNDERWATER VEHICLE
    Publication number: 20130231802
    Abstract: A submarine homing system includes an acoustic emitter configured to emit an acoustic signal comprising at least two narrow-band tones, each narrow-band tone having a respective predetermined center frequency. An acoustic receiver is configured to receive the acoustic signal from the acoustic emitter, and produce one or more receiver signals. A processor is operatively connected to the acoustic receiver. The processor is configured to process the receiver signals to calculate a direction between the acoustic receiver and the acoustic emitter.
    Type: Application
    Filed: June 26, 2012
    Publication date: September 5, 2013
    Applicant: Her Majesty the Queen in Right of Canada as Represented by the Minister of National Defence
    Inventors: Garry J. HEARD, Carmen E. LUCAS, Nicos PELAVAS, Derek A. CLARK, Gordon R. EBBESON, Richard A.G. FLEMING, George SCHATTSCHNEIDER
  • Hybrid-drive multi-mode pipe projector
    Patent number: 7626890
    Abstract: A hybrid drive (HD) multi-mode pipe projector (MMPP) for use in underwater acoustic applications is provided. The HD MMPP is formed with an inner magnetostrictive drive motor nested within an outer drive motor. The inner motor is surrounded by a magnetic field generating coil winding. Preferably the inner drive motor is a Terfenol-D motor and the outer drive motor is a radially-poled piezoceramic drive motor. This nested configuration provides increased bandwidth and low-frequency extension to the MMPP design.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: December 1, 2009
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence of Her Majesty's Canadian Government
    Inventor: Richard A. G. Fleming
  • Hybrid-drive multi-mode pipe projector
    Publication number: 20090116341
    Abstract: A hybrid drive (HD) multi-mode pipe projector (MMPP) for use in underwater acoustic applications is provided. The HD MMPP is formed with an inner magnetostrictive drive motor nested within an outer drive motor. The inner motor is surrounded by a magnetic field generating coil winding. Preferably the inner drive motor is a Terfenol-D motor and the outer drive motor is a radially-poled piezoceramic drive motor. This nested configuration provides increased bandwidth and low-frequency extension to the MMPP design.
    Type: Application
    Filed: November 7, 2007
    Publication date: May 7, 2009
    Inventor: Richard A.G. Fleming