A pipe conditioning tool comprising a drive unit to move the tool along a pipe and a work head rotatable about an axis of the pipe to condition a surface of the pipe, the drive unit includes a frame extending to opposite sides of the pipe, the frame having legs extending radially beyond the work head to provide support for the tool upon removal from said pipe.

Provided are apparatuses for the infusion of one or more additives into the surface of a linear substrate. The apparatuses include a processing barrel having an infusion chamber defined therein as well as a linear substrate inlet and a linear substrate outlet. The processing barrel also includes an infusion fluid inlet and an infusion solution outlet in fluid communication with the infusion chamber. The infusion chamber is dimensionally reconfigurable, optionally during an infusion process.

A system for coating a non-rotating pipe work piece including: valves, flow lines, and a mixing block for receiving a first and a second component material each delivered at a pressure, flow measurement devices to measure the flows of the components, a static mixer in fluid communication with the mixing block for receiving the combined components, a C-shaped plate member arranged around the work piece, a drive mechanism to oscillate a partial rotation of the C-shaped member about the work piece with the rate of oscillations controlled by a logic controller, at least two spray guns disposed on the C-shaped member to spray towards the outside surface of the work piece, a drive mechanism to traverse the at least two spray guns longitudinally with the rate of traverse controlled by a logic controller; and the logic controller(s) programmed to control based on a number of input and measured parameters.

The invention relates to apparatuses for treating the outside surface of cylindrical articles, and can be used for applying liquid substances to the surface of such articles. The apparatus for applying a coating additionally comprises a roller rotation actuator, a carriage and at least two arcuate brackets movably joined to the carriage. The rollers are designed to be capable of bending easily in any direction and have high torsional stiffness and low bending stiffness. One end of each roller is rotatably fastened to the carriage and is connected by a spindle to the rotation actuator. The other end of each roller is rotatably fastened to the free end of an arcuate bracket. The brackets are mounted on the carriage with a distance therebetween sufficient to accommodate the cross-section of the article to be treated. The brackets are capable of rotating towards one another in a mutually perpendicular manner and of enclosing the cross-section of the cylindrical article in a semi-circular manner. The technical result of the invention is increased efficiency, a simplified design, reduced dimensions and greater functional capabilities.

A pipe conditioning tool comprising a drive unit to move the tool along a pipe and a work head rotatable about an axis of the pipe to condition a surface of the pipe, the drive unit includes a frame extending to opposite sides of the pipe, the frame having legs extending radially beyond the work head to provide support for the tool upon removal from said pipe.

Provided are an enamel coating method and apparatus. The enamel coating method includes (a) preprocessing a surface of the metal tube by feeding the metal tube into a preprocessing chamber by an in-feed conveyor; (b) coating the surface of the metal tube with an enamel glaze supplied from an enamel glaze supply nozzle provided inside a coating chamber by feeding the preprocessed metal tube into the coating chamber; and (c) firing the coated metal tube by feeding the coated metal tube into a firing chamber, wherein the (b) coating includes spraying air toward the metal tube by an air spray nozzle provided inside the coating chamber.

An apparatus and method for modifying an aspect of an exterior polymer material or polymer type material of a linear substrate with a fluid. The apparatus include a variable exposure gap within which the linear substrate is exposed to the fluid. The width of the exposure gap is varied with the speed of the linear substrate traversing the exposure gap to maintain a constant exposure time of the linear substrate with the modifying fluid.

An apparatus and method for modifying an aspect of an exterior polymer material or polymer type material of a linear substrate with a fluid. The apparatus include a variable exposure gap within which the linear substrate is exposed to the fluid. The width of the exposure gap is varied with the speed of the linear substrate traversing the exposure gap to maintain a constant exposure time of the linear substrate with the modifying fluid.