Patents by Inventor Doug R. Lester

Doug R. Lester 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).

  • End-to-end ultrasonic inspection of tubular goods
    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
  • Apparatus for end-to-end ultrasonic inspection of tubular goods and system and method incorporating same
    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
  • Precise position clamp
    Patent number: D438081
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: February 27, 2001
    Inventor: Doug R. Lester