An apparatus and methods for applying an inner coating to a wellbore screen are described. The apparatus comprises a support for the wellbore screen, an elongate injector for injecting coating material into the inner bore of the wellbore screen, and a driver for positioning the elongate injector into the inner bore and moving the elongate injector through the inner bore to introduce coating material to the inner bore. The elongate injector has a supported end, a distal end, and a coating material delivery line extending through the elongate injector from a coating material supply to a port at the distal end.

A method for applying a predetermined pattern of material onto an elongate tubular substrate includes securing a first portion of an elongate tube having a non-circular outer perimeter to an engagement member configured to be rotated by a first motor, such that the elongate tube can be rotated in unison with the engagement member, operating the first motor to rotate the elongate tube, operating a second motor of to change the relative displacement between the elongate tube and a dispensing conduit along a longitudinal axis of the elongate tube, and expelling a conductive adhesive from a fluid dispenser through the dispensing conduit to form a predetermined pattern of the conductive adhesive on a surface of the elongate tube, the predetermined pattern of the conductive adhesive covering at least 180 degrees of the surface along the non-circular outer perimeter over a width of at least two millimeters along the longitudinal axis.

A system for spraying a coating such as lacquer on the internal surface of a can body (2) comprising vacuum chuck gears (42) for each vacuum chuck (16). The vacuum chucks hold the can body as it rotates about a main process turret (10) and to a spray station (32, 34). A ring gear rotates independently of main turret rotation and further gearing connects the ring gear to a vacuum chuck drive motor (11). The spray system provides tight process control and allows flexibility of process revolutions or use of higher machine production speed.

A device for assisting the coating of a radial self-sealing tire of trucks and buses, including: a support frame and a positioning frame. Both ends of a top of a side of the support frame are fixedly provided with a first bearing through a bearing seat, respectively. Two first bearings are arranged coaxially, and the positioning frame is rotatably connected between the two first bearings. Two chutes are arranged inside the support frame and opposite to a fixing frame. The two chutes are slidably connected with a sliding connection seat, respectively. A lifting frame is arranged between two sliding connection seats.

A method is provided for forming an impermeable barrier layer on an inner tire surface of a tire. An assembly is also provided along with a kit for forming an impermeable barrier layer on an inner tire surface of a tire accordingly.

Methods and systems comprising a first and a second powder coating apparatus, with each apparatus comprising a tubular barrel having an axial bore extending longitudinally therethrough, are usable for coating an interior surface of a tubular member. Each coating apparatus comprises a conical member connected with the tubular barrel and at least one gas conduit connected to the tubular barrel for communicating gas into the tubular barrel. The at least one gas conduit contains a gas flow control valve connected thereto for controlling the volumetric flow rate of gas through the at least one gas conduit. Each coating apparatus further comprises at least one container for holding a coating material, an inlet conduit for communicating the coating material into the axial bore of the tubular barrel, and a plurality of gas nozzles connected to the tubular barrel for inducing spiraling gas flow through the axial bore of the tubular barrel.

A method is provided for forming an impermeable barrier layer on an inner tire surface of a tire. An assembly is also provided along with a kit for forming an impermeable barrier layer on an inner tire surface of a tire accordingly.

A spray gun mount, and retrofit kit spray gun mount based thereon, and a method of retrofitting, adjusting and spraying based thereon, are structured that the motion of the spray gun occurs about a point of rotation located at the exact nozzle of the spray gun rather than at a location on the gun mount. An arcuate slot may be provided on a fixed mounting plate and extensions (partially threaded screws) pass through the arcuate slot. The extensions in turn are firmly attached to a movable gun mount plate to which the spray gun is affixed. In adjusting the spray gun, all that may be necessary is to loosen a fastener which holds the gun mount plate and gun from rotating relative to the fixed plate, rotating it relative to the fixed plate and fastening it back into place again.

A can body spraying machine comprises a can body spinning device, a spray gun for spraying a coating onto an interior of a can body mounted on the can body spinning device and a controller configured to cause the spray gun to switch when the can body spinning device is in a correct spraying position. A sensor coupled to the can body spinning device determines when the can body spinning device has undergone a predefined rotation following commencement of spraying and, in response to such determination, causes the spray gun to be switched off.

A system paints the external and internal faces of a splayed end of a hollow shaft, with a rotary paint bench. This splayed end includes an end support face and an opposite support face. The system includes a fixing ring applied against the end support face and a counter-ring applied against the opposite support face as well as a fixing device, an end hub fixed to the fixing ring in line with the splayed end, and including a running belt suitable for resting on two rollers of the bench, a hollow external hub including two half-hubs delimiting a running belt suitable for resting on two rollers of the bench, and fixed to the counter-ring while surrounding the splayed end.