Patents by Inventor Ransom Reddig

Ransom Reddig 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).

  • Electromagnetic survey system with multiple sources
    Patent number: 7642784
    Abstract: Multiple sources are provided for a transmitter cable for use in electromagnetic surveying. The transmitter cable includes a dipole antenna comprising a pair of spaced apart electrodes mounted on their respective cables. Two antennas may be powered from each source. Alternatively, the outputs of each source are connected to a common antenna pair. A single large power supply may be mounted on a vessel to supply power through the tow cable. Alternatively, a number of power supplies may be provided aboard the vessel, with each power supply having dedicated conductors through the tow cable to power the plurality of current sources.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: January 5, 2010
    Assignee: WesternGeco L.L.C.
    Inventors: Ransom Reddig, Philip Heelan
  • Electromagnetic survey system with multiple sources
    Patent number: 7411399
    Abstract: Multiple sources are provided for a transmitter cable for use in electromagnetic surveying. The transmitter cable includes a dipole antenna comprising a pair of spaced apart electrodes mounted on their respective cables. Two antennas may be powered from each source. Alternatively, the outputs of each source are connected to a common antenna pair. A single large power supply may be mounted on a vessel to supply power through the tow cable. Alternatively, a number of power supplies may be provided aboard the vessel, with each power supply having dedicated conductors through the tow cable to power the plurality of current sources.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: August 12, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Ransom Reddig, Philip Heelan
  • Electromagnetic survey system with multiple sources
    Publication number: 20080143335
    Abstract: Multiple sources are provided for a transmitter cable for use in electromagnetic surveying. The transmitter cable includes a dipole antenna comprising a pair of spaced apart electrodes mounted on their respective cables. Two antennas may be powered from each source. Alternatively, the outputs of each source are connected to a common antenna pair. A single large power supply may be mounted on a vessel to supply power through the tow cable. Alternatively, a number of power supplies may be provided aboard the vessel, with each power supply having dedicated conductors through the tow cable to power the plurality of current sources.
    Type: Application
    Filed: December 10, 2007
    Publication date: June 19, 2008
    Applicant: Schlumberger Technology Corporation
    Inventors: Ransom Reddig, Philip Heelan
  • ELECTROMAGNETIC SURVEY SYSTEM WITH MULTIPLE SOURCES
    Publication number: 20070075708
    Abstract: Multiple sources are provided for a transmitter cable for use in electromagnetic surveying. The transmitter cable includes a dipole antenna comprising a pair of spaced apart electrodes mounted on their respective cables. Two antennas may be powered from each source. Alternatively, the outputs of each source are connected to a common antenna pair. A single large power supply may be mounted on a vessel to supply power through the tow cable. Alternatively, a number of power supplies may be provided aboard the vessel, with each power supply having dedicated conductors through the tow cable to power the plurality of current sources.
    Type: Application
    Filed: October 4, 2005
    Publication date: April 5, 2007
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ransom Reddig, Philip Heelan