Patents by Inventor Edwin I. Hildebrandt

Edwin I. Hildebrandt 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).

  • Dynamic efficiency optimization of piezoelectric actuator
    Patent number: 7872945
    Abstract: This invention applies to the means whereby capacitance changes due to varying temperature and/or pressure in a piezoelectric transducer used for acoustic telemetry in a drilling environment is dynamically offset by modifying one or more parameters associated with the drive or control circuitry of said transducer. The object of the invention is to closely maintain the transducer in a resonant mode, thereby ensuring optimum energy consumption.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: January 18, 2011
    Assignee: XAcT Downhole Telemetry, Inc.
    Inventors: Paul L. Camwell, Edwin I. Hildebrandt, Andrzej M. Sendyk