Patents by Inventor Andrew Hammerschmidt

Andrew Hammerschmidt 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).

  • X-ray backscatter device for wellbore casing and pipeline inspection
    Patent number: 8138471
    Abstract: An apparatus for inspection in situ of a wellbore casing and a pipeline from inside the wellbore or pipeline. The apparatus includes a penetrating radiation source such as x-rays, a rotatable beam collimator adapted to collimate the penetrating radiation source and produce at least one pencil radiation beam rotatable about the radiation source, an arcuate radiation detector suitable for detecting radiation scattered off a target, and a housing containing the radiation source, the rotatable beam collimator, and the radiation detector. The housing is provided with at least one exit point for exiting of the at least one pencil radiation beam from the housing.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: March 20, 2012
    Assignee: Gas Technology Institute
    Inventors: Daniel Shedlock, Andrew Hammerschmidt