Abstract: A system for filling a gap between jacket ends at a joint between two lengths of jacketed pipe is disclosed, comprising: a mold and two pairs of side straps encircling the mold. The mold comprises a sheet of material having first and second ends and opposing side edges, the sheet including a pair of slots cut into the side edges at a predetermined distance from the second end and defining a flap. One pair of straps encircles the mold but passes under the flap through the slots. The second pair of straps encircles the mold and passes over the flap. The mold is positioned around a pipe joint so as to define an annular gap and an infill material is placed in the gap.

Abstract: A pair of concrete coated pipe joints welded together end to end with a gap between the concrete coatings, the gap being filled with a fast setting elastomeric polymeric infill material, either solid or foamed, and a particulate filler material, and a method for molding the infill material with the mold being filled with filler material before the polymer components are injected, and with a membrane lining the mold to prevent the polymer from adhering to the mold.

Abstract: Cylindrical spacers molded in place on a pipe or plurality of pipes to be installed in a casing, the spacers being made of a material which adheres to the pipe but has a low coefficient of friction with the casing, so the spacer will stay in place when the pipe is slid longitudinally in the casing.

Abstract: A pair of concrete coated pipe joints welded together end to end with a gap between the concrete coatings, the gap being filled with a fast setting elastomeric polymeric infill material, either solid or foamed, and a particulate filler material, and a method for molding the infill material with the mold being filled with filler material before the polymer components are injected, and with a membrane lining the mold to prevent the polymer from adhering to the mold.

Abstract: A method for making a protector to prevent galvanic anodes from being accidentally knocked off a pipeline in which a mold having a frusto-conical shape is placed around each end of a segmented anode, with an opening at the top of the mold opposite a gap between anode segments, liquid components of a rapid setting elastomeric polymer are injected into the opening until all of the cavities and the gap are filled, and the polymer is allowed to set up and adhere to the anode and to the pipe.

Abstract: A protector for a segmented anode encircles a pipeline. The protector includes an elastomeric polymeric structure molded in place at each end of the anode. The structure has the external shape of the frustrum of a cone with the base of the cone encircling the tapered end of the anode. The frustrum terminates at the diameter of the pipeline. The taper is made from a tough, fast setting polymer. In a preferred embodiment the polymer not only forms the molded taper, but fills the space between the anode segments and flows between the anode segments and the pipe. The protector adheres to the pipe as well as to the anode material, provides a corrosion barrier, and bonds the anode segments to the pipe.