Abstract: A method and apparatus for lining a host pipe in which a liner is positioned on a carrier tube at a work site. The liner and carrier tube are separately positioned at the work site near a first access point to the host pipe. Ends of the liner and carrier tube are fed through a folding die, and the liner and carrier tube are pulled conjointly through the folding die into the host pipe. As the liner and carrier tube are pulled, the folding die folds the liner to wrap the liner around the carrier tube. In some embodiments, the folding die includes an inner slot for receiving the carrier tube and an outer slot for receiving the liner. The outer slot includes first and second overlapping sections. Portions of the liner received in the overlapping sections are positioned in overlapping engagement as the liner is pulled through the die.

Abstract: Method and apparatus for forming a grommet assembly to seal and reinforce holes through a cured in place liner for securing a cable. A first grommet base having a centrally located aperture with wedge shaped grooves is positioned on one side of the hole. A barrel having two opposed sets of wedge shaped projections is inserted into the grommet base and a second grommet base is placed on the barrel and pushed towards the liner until the second base firmly contacts the top surface of the liner and compresses the liner against the first base. The wedge shaped projections on the barrel and the complimentary grooves in the central apertures of the grommet bases prevent the barrel from being pulled out of either grommet base. The end of the barrel which projects out above the second base is cut off flush with the top surface. A hydraulic press to install the grommet assembly is also disclosed.

Abstract: Method and apparatus for forming a grommet assembly to seal and reinforce holes through a cured in place liner for securing a cable. A first grommet base having a centrally located aperture with wedge shaped grooves is positioned on one side of the hole. A barrel having two opposed sets of wedge shaped projections is inserted into the grommet base and a second grommet base is placed on the barrel and pushed towards the liner until the second base firmly contacts the top surface of the liner and compresses the liner against the first base. The wedge shaped projections on the barrel and the complimentary grooves in the central apertures of the grommet bases prevent the barrel from being pulled out of either grommet base. The end of the barrel which projects out above the second base is cut off flush with the top surface. A hydraulic press to install the grommet assembly is also disclosed.