A slip molding apparatus (10) for lining a pipe (12) includes a dispense head (20) adapted to engage an interior surface (14) of a pipe (12) and to dispense a lining material, a slip mold (38) pulled by the dispense head (20) and having a leading end (42) and a trailing end (44), wherein the trailing end (44) has a greater diameter than a diameter of the leading end (42), at least one camera (58) disposed on the dispense head (20) to provide a view of the interior surface (14) of the pipe (12), a guide (46) connected to the dispense head (20) and the slip mold (38) for guiding the lining material dispensed by the dispense head (20) about the slip mold (38), and a movable diverter (52) on the slip mold (38) cooperating with the guide (46) to divert a flow of lining material dispensed by the dispense head (20) about the slip mold (38).

A slip molding apparatus (10) for lining a pipe (12) includes a dispense head (20) adapted to engage an interior surface (14) of a pipe (12) and to dispense a lining material, a slip mold (38) pulled by the dispense head (20) and having a leading end (42) and a trailing end (44), wherein the trailing end (44) has a greater diameter than a diameter of the leading end (42), at least one camera (58) disposed on the dispense head (20) to provide a view of the interior surface (14) of the pipe (12), a guide (46) connected to the dispense head (20) and the slip mold (38) for guiding the lining material dispensed by the dispense head (20) about the slip mold (38), and a movable diverter (52) on the slip mold (38) cooperating with the guide (46) to divert a flow of lining material dispensed by the dispense head (20) about the slip mold (38).

This grease application device includes: a nozzle body that has a first end portion insertable into an inner spline portion, the inner spline portion being formed at an end portion of a workpiece; a nozzle that is formed on the first end portion of the nozzle body and discharges grease into a groove of the inner spline portion; a nozzle body shift portion that is connected to a second end portion of the nozzle body and that moves the nozzle body in a longitudinal direction, the second end portion being on an opposite side to the first end portion; a grease retention portion that retains the grease discharged from the nozzle; a grease pressure-feed portion that pressure-feeds the grease retained in the grease retention portion to the nozzle; and an operation portion that links an operation of causing the nozzle body shift portion to move the nozzle body from the first end portion toward the second end portion with an operation of causing the grease pressure-feed portion to discharge the grease from the nozzle.

This grease application device includes: a nozzle body that has a first end portion insertable into an inner spline portion, the inner spline portion being formed at an end portion of a workpiece; a nozzle that is formed on the first end portion of the nozzle body and discharges grease into a groove of the inner spline portion; a nozzle body shift portion that is connected to a second end portion of the nozzle body and that moves the nozzle body in a longitudinal direction, the second end portion being on an opposite side to the first end portion; a grease retention portion that retains the grease discharged from the nozzle; a grease pressure-feed portion that pressure-feeds the grease retained in the grease retention portion to the nozzle; and an operation portion that links an operation of causing the nozzle body shift portion to move the nozzle body from the first end portion toward the second end portion with an operation of causing the grease pressure-feed portion to discharge the grease from the nozzle.

A central tubular defines a central flow passage and spray nozzles along an outer circumference of the central tubular. A first brush pig supports a first end of the central tubular. A second brush pig supports a second end of the tubular. An inflatable balloon is at the second end of the tubular. The inflatable balloon is encircled by the second brush pig. The inflatable balloon is configured to cause a first pressure drop across the balloon when in an inflated state and cause a second pressure drop, less than the first pressure drop, across the balloon when in a deflated state. A flow control system is at the first end of the tubular and is configured to regulate fluid exchange with the tubular and fluid exchange with the inflatable balloon.

A central tubular defines a central flow passage and spray nozzles along an outer circumference of the central tubular. A first brush pig supports a first end of the central tubular. A second brush pig supports a second end of the tubular. An inflatable balloon is at the second end of the tubular. The inflatable balloon is encircled by the second brush pig. The inflatable balloon is configured to cause a first pressure drop across the balloon when in an inflated state and cause a second pressure drop, less than the first pressure drop, across the balloon when in a deflated state. A flow control system is at the first end of the tubular and is configured to regulate fluid exchange with the tubular and fluid exchange with the inflatable balloon.

A method of lining an inner surface of a tubular with a polymer, includes positioning a polymer injecting head within the tubular, forming an annular space between the injecting head and an inner surface of the tubular, injecting polymer through the injecting head into the annular space, and moving the polymer injecting head longitudinally relative to the tubular while injecting polymer.

A method of lining an inner surface of a tubular with a polymer, includes positioning a polymer injecting head within the tubular, forming an annular space between the injecting head and an inner surface of the tubular, injecting polymer through the injecting head into the annular space, and moving the polymer injecting head longitudinally relative to the tubular while injecting polymer.

A system is provided for applying a chemical agent within a pipe. The system includes a skid assembly, moveable longitudinally within the pipe and a delivery nozzle carried by the skid assembly and coupleable to an external chemical agent supply. A dispensing tip is carried by the delivery nozzle, the dispensing tip being configured to deliver a controlled stream of chemical agent within the pipe toward an internal surface of the pipe. The dispensing tip is held above a surface of fluid carried by the pipe while at least a portion of the skid assembly is positioned below the fluid surface. The dispensing tip delivers the controlled stream of chemical agent upwardly away from the fluid surface.

A method of lining an inner surface of a tubular with a polymer, includes positioning a polymer injecting head within the tubular, forming an annular space between the injecting head and an inner surface of the tubular, injecting polymer through the injecting head into the annular space, and moving the polymer injecting head longitudinally relative to the tubular while injecting polymer.