Patents Assigned to Engineering Crossing Systems, (Partnership)
  • Horizontal drilling machine
    Patent number: 5810101
    Abstract: A digger from a unit for digging utility pole holes is encased in an elongated box. The box has an attachment thereon for attachment to the carrying arm of a backhoe in place of the backhoe bucket. A 90.degree. attachment provides versatility. The digger is thus capable of digging horizontal tunnels for laying one underground line under another underground line.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: September 22, 1998
    Assignee: Engineering Crossing Systems, (Partnership)
    Inventors: John Caraway, Jr., George McMillan