Patents Assigned to Donna Pratt Terrell
  • Multi-run chemical cutter and method
    Patent number: 4889187
    Abstract: Disclosed are a method and an apparatus for cutting conduits. The apparatus includes a cutting head adapted for insertion in the conduit. The cutting head has at least one nozzle. The cutting head is rotatable to locate a previously cut sector of the conduit. A decentralizer is provided for positioning the nozzle adjacent a portion of the conduit.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: December 26, 1989
    Assignees: Jamie Bryant Terrell, Donna Pratt Terrell
    Inventors: Jamie B. Terrell, Donna P. Terrell, Setella Parks