Patents by Inventor Iain M. Mason

Iain M. Mason 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).

  • Seismic surveying
    Patent number: 5260911
    Abstract: A method of seismic surveying uses seismic waveguides in the earth. Seismic energy is transmitted from outside the waveguide and detected within the waveguide or vice-versa. Coupling of energy between the outside and the inside of the waveguide is effected by energy leakage at coupling sites where the waveguide departs from planarity. The method analyzes seismic signals to determine the position and nature of coupling sites and the propagation characteristics of the waveguide.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: November 9, 1993
    Inventors: Iain M. Mason, Geoffrey M. Jackson, Delman Lee, David S. R. Campbell, Charles C. Mosher
  • Mapping faults in a geological seam
    Patent number: 4653031
    Abstract: An area of a seam is defined and a series of shot locations and detectors are arranged along one side of the area to determine reflected signals. Transmitted signals are also received from a line of shot locations on the other side of the area. The signals received are processed according to an adaptive lag-summing technique to give a map showing the geological faults in the seam.
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: March 24, 1987
    Assignee: Coal Industry (Patents) Limited
    Inventors: David J. Buchanan, Richard Davis, Peter J. Jackson, Iain M. Mason
  • Method of and apparatus for locating disturbances in a mineral seam
    Patent number: 4351035
    Abstract: Faults in an underground coal seam are located by firing a shot at one point in the seam and detecting the seismic reflections in an array of geophones. Signals from the geophones are recompressed and analyzed according to an exponential formula to give a holograph of the seam and to predict the fault pattern.
    Type: Grant
    Filed: October 19, 1979
    Date of Patent: September 21, 1982
    Assignee: Coal Industry (Patents) Limited
    Inventors: David J. Buchanan, Iain M. Mason