The present invention relates to a device for coating the inside of an artificial blood vessel and, to explain more specifically, to a device for coating the inside of an artificial blood vessel inserted into the body of a human for a medical purpose, which is configured to be able to selectively coat just the inside of a lumen of the artificial blood vessel with a bioactive substance for inhibiting neointimal hyperplasia, in order to prevent a side effect, such as angiostenosis or inflammation, from occurring in an area connecting the artificial blood vessel and a blood vessel in the body.

A maintenance tool for gas turbine engine includes a rail system having a plurality of rail segments insertable through one or more inspection holes of the gas turbine engine for assembly within a core air flowpath of the gas turbine engine. The maintenance tool additionally includes a maintenance head movable along the plurality of rail segments of the rail system for performing maintenance operations within the core air flowpath.

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 spraying system and method is provided for more efficiently accessing the interior of a container having an access opening to the container that is offset from or in angular relationship to the center and/or rotational axis of the container to contact the interior walls and surfaces of the container with a medium, such as a liquid, mixture, solution or suspension. The spraying system and method includes a non-linear boom that is elevated by a support structure, where the non-linear boom includes at its front end a plurality of spray nozzles. In one example, the support structure is a movable support structure that includes a guide mechanism where the guide mechanism is mounted on the moveable support structure at an angle relative to the surface supporting the moveable support structure to allow access to the interior of the container.

Some embodiments of the invention belongs to a technical field of NdFeB magnet processing, and mainly relates to a device and method for improving the coercivity of ring-shaped NdFeB magnet. A layer of heavy rare earth coating is sprayed on the inner and outer surfaces of the ring-shaped NdFeB magnet by the device, and then the ring-shaped NdFeB magnet sprayed with the heavy rare-earth coating is subjected to diffusion treatment to improve the coercivity of the ring-shaped NdFeB magnet. The invention uses heavy rare earth slurry as the diffusion source, combined with spraying technology, can quickly and uniformly cover a layer of heavy rare earth coating on the inner and outer surfaces of the ring-shaped NdFeB magnet, and the coercivity of the ring-shaped NdFeB magnet is improved after heat treatment.

A device for directing high pressure fluid includes: a spindle having a rigid body defining a fluid passageway therein; a spindle mount configured to mount the spindle to a fluid source; and a fluid distributer coupled to the spindle and including a plurality of spaced-apart fluid dispensers formed therein that are each fluidly coupled to the fluid passageway and configured to dispense fluid outside the device.

The nozzle for cold spray (25) used in a cold spray apparatus (2) is configured to include a tubular nozzle main body (252) and a cooling jacket (253) that surrounds the nozzle main body (252) to form a flow path (25e) for refrigerant (R) between the nozzle main body (252) and the cooling jacket (253). The cooling jacket (253) is provided with a seal retaining portion (253c) that retains an O-ring (253b) for the flow path (25e). The seal retaining portion (253c) and the nozzle main body (252) are joined in a socket-and-spigot joint fashion.

An attachment element for a static mixer and an attachment system with such an attachment element, the static mixer, and a pressure sensor. The attachment element has a flow channel with an inlet opening and an outlet opening arranged opposite the inlet opening in a longitudinal direction of the flow channel and designed as an injection nozzle. The attachment element is designed to be fastened at an inlet side having the inlet opening by a fastening unit of the attachment element on top of an injection tip of the static mixer. Furthermore, the attachment element has a receiving opening for the pressure sensor. The receiving opening extends from an exterior side of the attachment element to an opening in a subsection of a channel wall of the flow channel.

A method for coating a surface with a coating jet containing coating particles includes forming the coating jet from at least two partial jets. The method also includes forming one of the exit channels as a spray channel for a first gas stream containing the coating particles. The method also includes forming the other of the exit channels as a control channel. In case of a deviation of the ascertained spray angle (α) from the predetermined target spray angle, the method also includes increasing the volume flow of a first partial jet of the at least two partial jets, and decreasing the volume flow of a second partial jet of the at least two partial jets.

A system and method include a frame member and an applicator. The frame member includes a hollow frame and a distribution component arranged in the interior of the frame. The distribution component includes a base component and a conduit on its exterior surface. The applicator delivers a fluid, which can include an anti-corrosion material, to the distribution component, which fluid is then delivered by the conduit throughout the interior of the frame and ejected through discharge openings of the conduit onto the interior surface of the frame to coat the frame with the fluid. The fluid may form an anti-corrosion coating on the interior surface of the frame.