Disclosed herein is a tool for holding a spray painting instrument, such as a painting gun for painting an internal surface of a pipe. In particular, the inventive tool is ideal for painting the interior of curves and angles in a pipe and is capable of moving through and uniformly painting up to 90 degree angles of pipes or hollow tubes. The tool has a hollow central tube for carrying a spray-painting gun and at least two projections extending outwardly from an outer surface of the hollow tube. A retracting arm assembly is provided on each projection. Each retracting arm assembly includes first and second retracting arms and a corresponding force exertion mechanism. In operation, when the tool is inserted inside the pipe, each retracting arm touches the internal surface of the pipe due to an outward force exerted thereon. The tool is movable inside the pipe and adjusts automatically to different pipe diameters. The tool can be used manually or in an automated fashion to push and pull the paint gun and paint the interior of a pipe.

A lateral applicator kit for a pipe has a first application unit and a second application unit that are configured to apply a primer material or other substance to the exterior and interior lateral surfaces of a pipe, respectively. The first application unit is configured to receive primer through a supply engagement feature, which is in fluid communication with a reservoir cavity internal to the first application unit and further in fluid communication with at least one perforated annular wall of an application receptacle configured to receive, and apply primer to, the exterior lateral surface of a pipe. The second application unit is similarly but inversely configured to apply primer to the interior lateral surface of a pipe by receiving primer into a supply receptacle, which is transferred through at least one spout set into and through an annular distributing container connected annularly around the supply receptacle.

An air purging coater apparatus is disclosed for purging mixed components from the apparatus disposed in a pipeline at a pipeline site. The apparatus includes a remote-controlled apparatus for insertion within the pipeline at the pipeline site. The remote-controlled apparatus includes a drive for controllably moving the remote-controlled apparatus internally within the pipeline. A high-pressure mixing device defines a first inlet controllably connected to a pressurized source of a first component. The high-pressure mixing device also defines a second inlet controllably connected to a further pressurized source of a second component. The high-pressure mixing device defines a high-pressure mixing chamber connected to the first and the second inlets for mixing together the first and second components. The high-pressure mixing device defines an outlet connected to the high-pressure mixing chamber for receiving a flow therethrough of the mixed components. A spin head defines an internal conical surface having an apex which cooperates with the outlet of the high-pressure mixing device for receiving the flow of the mixed components. The spin head includes a baffle which is disposed adjacent to the apex such that when the spin head is rotated, the mixed components are deflected by the baffle onto the internal conical surface so that the mixed components are applied to an inside surface of the pipeline at the pipeline site. The high-pressure mixing device is controllably movable from an application disposition thereof to a purging disposition, the application disposition being such that the first inlet and the second inlet are aligned with and in fluid communication with the respective pressurized source and further pressurized source so that the mixed components are applied to the inside surface of the pipeline. When the high-pressure mixing device is controllably moved to the purging disposition, the first and second inlets are moved out of alignment with the pressurized sources so that the flow of the mixed components is terminated and a source of pressurized air flows into and through the first and second inlets and from the inlets through the high-pressure mixing chamber and the outlet for purging any residual mixed components from the high-pressure mixing device thereby avoiding any need for the use of a potentially hazardous solvent together with life threatening conditions that could result from the introduction of such solvent into the pipeline at the pipeline site.

Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.

A method of manufacturing a solar heat collection pipe includes an inner circumferential film forming step of forming an antireflection film on an inner surface of a glass pipe and an outer circumferential film forming step of forming an antireflection film on an outer surface of the glass pipe. These film forming steps are performed so that a part of a coating film through which a coating material is flowed when the coating material is discharged from the glass pipe in a coating material discharging step of the inner circumferential film forming step and a part of a coating film with which the coating material is in contact when the glass pipe is lifted from the coating material in a lifting step of the outer circumferential film forming step are positioned within a half circumference of the glass pipe in a circumferential direction of the glass pipe.

A method of automated pipeline chemical batch treatment includes receiving treatment information at a control system of a pipeline. If the treatment information includes an instruction to activate a pump system, the method includes transmitting an activation signal from the control system to the pump system in accordance with the treatment information. The activation signal causes the pump system to pump one or more chemicals from a chemical feed system into the pipeline. If the treatment information includes an instruction to deactivate the pump system, the method includes transmitting a deactivation signal from the control system to the pump system in accordance with the treatment information, wherein the deactivation signal causes the pump system to stop pumping one or more chemicals from the chemical feed system into the pipeline.

A method of lining a pipe with a lining mixture formed from a dry component and a liquid is discussed. The method includes placing the dry component in a dry component surface container located above ground, conveying the dry component from the dry component surface container to a dry component subterranean supply container located underground, conveying the dry component from the dry component subterranean supply container to a mixer located underground, mixing the dry component with the liquid to form the lining mixture, and applying the lining mixture to the pipe with a mixture applicator.

A method for pre-treating a catheter prior to using the catheter in a medical procedure, and a related apparatus, are provided. The method comprises exposing, in a plasma chamber positioned in a medical care center, and under sterile conditions, intraluminal surfaces and extraluminal surfaces of the catheter to plasma. The plasma is electromagnetically-generated adjacently to the intraluminal surfaces and extraluminal surfaces, thereby rendering, at least temporarily, the intraluminal surfaces and extraluminal surfaces of the catheter hydrophilic.

Disclosed is the treatment of the interior walls of a fluidic channel with a self-assembled monolayer of an organophosphorus acid.

A composition for application to a substrate is provided. The composition comprises a base component and an activator component. The base component comprises hydroxyl functional prepolymers and the activator comprises isocyanate prepolymers. The composition further comprises an amount of carbon fibre. The hydroxyl functional prepolymers are formulated to polymerise with the isocyanate prepolymers to form a polymer containing carbon fibre.