Patents by Inventor David E. Siverling

David E. Siverling 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).

  • Patent number: 6945113
    Abstract: The present technique provides a system and method for ultrasonically testing a tubular good along the entire axial length of the material using a single ultrasonic test assembly. The ultrasonic test assembly has an ultrasonic tubular inspection unit movable lengthwise along a tubular and an end-crossing extension mechanism adapted to facilitate end inspection of the tubular.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: September 20, 2005
    Inventors: David E. Siverling, Doug R. Lester, Bill McWhorter
  • Publication number: 20040020298
    Abstract: The present technique provides a system and method for ultrasonically testing a tubular good along the entire axial length of the material using a single ultrasonic test assembly. The ultrasonic test assembly has an ultrasonic tubular inspection unit movable lengthwise along a tubular and an end-crossing extension mechanism adapted to facilitate end inspection of the tubular.
    Type: Application
    Filed: August 1, 2003
    Publication date: February 5, 2004
    Inventors: David E. Siverling, Doug R. Lester, Bill McWhorter
  • Publication number: 20030233880
    Abstract: The present technique provides a system and method for ultrasonically testing a tubular good through a fluid medium using a movable ultrasonic test assembly. The movable ultrasonic test assembly has a fluid chamber, which is open to an outer surface of the tubular good. Ultrasonic transducers are mountable in the movable ultrasonic test assembly, such that ultrasound waves are transmittable through fluid between the tubular and the ultrasonic transducers. The movable ultrasonic test assembly also may have a removable interface structure, which serves as a replaceable wear surface for movably supporting the ultrasonic test assembly on the outer surface of the tubular. A variety of positioning and control system also may be provided to perform an ultrasonic test of the tubular. For example, the positioning and control system may have drive assemblies for rotating the tubular and moving the ultrasonic test assembly along the tubular.
    Type: Application
    Filed: June 25, 2002
    Publication date: December 25, 2003
    Inventors: David E. Siverling, Bill McWhorter
  • Patent number: 5600069
    Abstract: Ultrasonic testing apparatus 10 and method for ultrasonically scanning an oilfield tubular 42,56. The apparatus includes four ultrasonic arrays 12, 14, 16, 18 each containing a plurality of individual watertight ultrasonic transducers 20. Axially adjustable ultrasonic arrays 100, 121 include axially spaced sockets 102, 106, and 122, 124, 126, respectively, for controlling an axial movement thereof to preferably discrete positions associated with each selected range of diameters of oilfield tubulars to be tested. Within that range of diameters, the ultrasonic testing apparatus 10 reliably provides for a constant 100% coverage of the tubular to be tested. During scanning, the tubular 56 is moved axially and rotationally with respect to an ultrasonic testing apparatus 50 to provide a helical scan pattern along the length of the tubular 56.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: February 4, 1997
    Assignee: ICO, Inc.
    Inventors: Richard J. Girndt, David E. Siverling