Patents by Inventor Andrew R. Duncan

Andrew R. Duncan 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).

  • Method for interpreting dipping natural fracture and fault planes identified from borehole images
    Patent number: 8705804
    Abstract: A method of interpreting specific dipping surfaces in earth formations, namely, fracture and fault planes from borehole images. The method is applicable to borehole images obtained from any borehole imaging tool, regardless of tool physics or acquisition type. The interpretation method provides for detailed description of feature s in order to provide a robust framework for subsequent interpretation work.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: April 22, 2014
    Assignee: Fronterra Integrated Geosciences, LLC
    Inventors: Andrew R. Duncan, Jens Klaus Hustedt, Hermann Josef Homann, Jarret Borell, Ramiro Gabriel Lopez
  • Method for interpreting dipping natural fracture and fault planes identified from borehole images
    Publication number: 20110064277
    Abstract: A method of interpreting specific dipping surfaces in earth formations, namely, fracture and fault planes from borehole images. The method is applicable to borehole images obtained from any borehole imaging tool, regardless of tool physics or acquisition type. The interpretation method provides for detailed description of feature s in order to provide a robust framework for subsequent interpretation work.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 17, 2011
    Applicant: Fronterra Integrated Geosciences, LLC
    Inventors: Andrew R. Duncan, Jens Klaus Hustedt, Hermann Josef Homann, Jarret Borell, Ramiro Gabriel Lopez
  • Bale feeding apparatus
    Patent number: 4443146
    Abstract: A hay bale feeder (1) which can be carried or towed has a framework including spaced apart side walls (4:9,28) which define a trough (T) into which a round hay bale can be placed to be supported and rotated by an endless conveyor (14) extending across the trough (T) between the side walls (4;9,28). The endless conveyor (14) has bale engaging spikes (26) which engage with the bale causing it to rotate and at the upper edge of the side wall (9,28) tears off hay from the bale to give a narrow windrow feed out from the apparatus over the side wall (9,28).
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: April 17, 1984
    Inventor: Andrew R. Duncan