Patents by Inventor Garrett O. Jackson

Garrett O. Jackson 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).

  • Retrievable wedging system for coupling downhole devices into cased bore holes
    Patent number: 4840230
    Abstract: A retrievable downhole wedging system is disclosed for firmly securing accelerometers and other instruments to the bottom of a cased bore hole. The system includes a pair of arcuate top wedges and a pair of arcuate bottom wedges for insertion between the accelerometers and the casing. The bottom wedges are slideably coupled to the accelerometer such that they will not become separated from the accelerometer during retrieval. A retrieving means is provided for disengaging the accelerometer by first individually removing the top wedges and then pulling the accelerometer free of the bottom wedges.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: June 20, 1989
    Assignee: Electric Power Research Institute, Inc.
    Inventors: T. Leslie Youd, Garrett O. Jackson