Patents Assigned to Illinois Department of Transportation
  • Publication number: 20110107585
    Abstract: A breakaway coupling for joining a generally vertical pole structure to a supporting foundation is provided. The breakaway coupling is provided with a multi-sided, elongated body, which may be square-shaped, hexagonal, or generally polygonal in shape. The multi-sided, elongated body is provided with an upper end and a lower end, an outer surface, and is machined to have an internally threaded bore that extends between the upper end and the lower end of the multi-sided, elongated body. The outer surface of the multi-sided, elongated body of the breakaway coupling is provided with at least one horizontally disposed, circumferential groove extending partially into the multi-sided, elongated body toward the internally threaded bore and also extending to a critical notch depth.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 12, 2011
    Applicant: ILLINOIS DEPARTMENT OF TRANSPORTATION
    Inventor: Christopher Hahin
  • Patent number: 6899263
    Abstract: A repair station for a soil auger includes a frame on which the mount the auger at a working height and a motor and gear reduction system to rotate the auger. A slide bar is mounted parallel to the auger and carries a welding guide for supporting a welding gun. The welding guide includes portions engaging the blade, or flight, of the auger to move the welding guide axially of the auger as it rotates. The welding guide also includes a welding gun support shoe with a variable height to position the welding gun so as to lay a bead of metal on the edge of the auger blade. Repeated applications of the welding bead are performed to build up the blade from a worn state to a rebuilt state.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: May 31, 2005
    Assignee: Illinois Department of Transportation
    Inventors: Michael Sean Tappan, Clinton Gene Barnhart, Jerry Lee Iams
  • Publication number: 20040108360
    Abstract: A repair station for a soil auger includes a frame on which the mount the auger at a working height and a motor and gear reduction system to rotate the auger. A slide bar is mounted parallel to the auger and carries a welding guide for supporting a welding gun. The welding guide includes portions engaging the blade, or flight, of the auger to move the welding guide axially of the auger as it rotates. The welding guide also includes a welding gun support shoe with a variable height to position the welding gun so as to lay a bead of metal on the edge of the auger blade. Repeated applications of the welding bead are performed to build up the blade from a worn state to a rebuilt state.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 10, 2004
    Applicant: Illinois Department of Transportation
    Inventors: Michael Sean Tappan, Clinton Gene Barnhart, Jerry Lee Iams
  • Patent number: 4395859
    Abstract: The invention relates to a method and apparatus for securing an object to a support structure. The apparatus generally comprises a rod-shaped anchoring member provided with a longitudinal aperture therethrough. The anchoring member is externally threaded at a first end and at a second end is provided with a spiral groove adapted for receipt of a flexible wire. The anchoring member is also provided at the first end with a one-way valve.In practicing the method of the present invention, the anchoring member is positioned in an anchoring hole, or void, existing in the support structure. A hardenable and cementitious material is injected through the one-way valve until the anchoring hole is substantially filled with the hardenable and cementitious material. Thereafter the assembly is allowed to remain undisturbed until the hardenable and cementitious material sets and hardens.
    Type: Grant
    Filed: June 5, 1980
    Date of Patent: August 2, 1983
    Assignee: State of Illinois, Department of Transportation
    Inventor: Oscar J. Rohrer