Patents by Inventor Douglass J. Kuhns

Douglass J. Kuhns 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).

  • Drill string enclosure
    Patent number: 5191156
    Abstract: The drill string enclosure consists of six component parts, including; a top bracket, an upper acrylic cylinder, an acrylic drill casing guide, a lower acrylic cylinder, a bottom bracket, and three flexible ducts. The upper acrylic cylinder is optional based upon the drill string length. The drill string enclosure allows for an efficient drill and sight operation at a hazardous waste site.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: March 2, 1993
    Assignee: The United States of Americas as represented by the United States Department of Energy
    Inventors: Douglas K. Jorgensen, Douglass J. Kuhns, Otto Wiersholm, Timothy A. Miller