Patents by Inventor Larry D. Rushing

Larry D. Rushing 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).

  • Abrasive cleaning device and method
    Patent number: 4827680
    Abstract: An abrasive cleaning device that includes a nozzle assembly and method wherein a low pressure stream of abrasive particles and gas, and a high pressure stream of liquid are provided. These streams intersect an an angle sufficient to entrain the abrasive particles within the high pressure liquid stream. The abrasive particles are directed into contact with a surface to be abraded. The intersecting of the streams occurs outside the nozzle assembly.
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: May 9, 1989
    Assignee: Tuboscope Inc.
    Inventors: Larry D. Rushing, Douglas W. McFadden