Patents by Inventor Paul Mumford

Paul Mumford 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).

  • Metallic conductor disturbance detection device and method
    Patent number: 9728065
    Abstract: A method of detecting disturbance in a metallic conductor, comprises the steps of providing an inductance sensing circuit in mechanically and electrically connected to a metallic conductor having a monitorable inductance, tuning the inductance sensing circuit based on an electromagnetic field impressed upon the metallic conductor and an internally generated circuit oscillation, and outputting an alert signal when a tuned output signal from the tuned inductance sensing circuit becomes detuned due to a change in inductance of the metallic conductor by addition to or removal of at least a portion of the metallic conductor. A metallic conductor disturbance detection device for such a method is also provided, the device comprising an amplitude and/or frequency tunable inductance sensing circuit, and an alarm circuit for outputting an alarm signal based on an output of the inductance sensing circuit.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: August 8, 2017
    Assignee: CRESATECH LIMITED
    Inventors: Simon James Jarvis, Paul Mumford, Roger Merchant
  • Cresatech Limited
    Publication number: 20150022364
    Abstract: A method of detecting disturbance in a metallic conductor, comprises the steps of providing an inductance sensing circuit in mechanically and electrically connected to a metallic conductor having a monitorable inductance, tuning the inductance sensing circuit based on an electromagnetic field impressed upon the metallic conductor and an internally generated circuit oscillation, and outputting an alert signal when a tuned output signal from the tuned inductance sensing circuit becomes detuned due to a change in inductance of the metallic conductor by addition to or removal of at least a portion of the metallic conductor. A metallic conductor disturbance detection device for such a method is also provided, the device comprising an amplitude and/or frequency tunable inductance sensing circuit, and an alarm circuit for outputting an alarm signal based on an output of the inductance sensing circuit.
    Type: Application
    Filed: January 25, 2013
    Publication date: January 22, 2015
    Inventors: Simon James Jarvis, Paul Mumford, Roger Merchant