A method for coating a thin film in a rolling manner and a thin film coating apparatus are provided. The method includes: floating a thin film material on a liquefied material; rolling a cylindrical substrate after contacting the cylindrical substrate with the thin film material; and coating the thin film material on a surface of the cylindrical substrate by using an attraction force between the surface of the cylindrical substrate and the thin film material.

A girth weld coating machine has an application head rotatable about a pipeline. A reservoir of coating material is carried on the application head and progressively dispenses coating material on to the girth weld. The coating material is applied to the pipe surface by a roller to spread and distribute the coating over the surface.

There is provided an applicator device (1) for applying a composition to an end of a pipe. The applicator device comprises an applicator head (3), the applicator head having a cavity (9) with an opening into which the end of the pipe can be inserted. The applicator head comprises at least one brush (10) and at least one aperture (12) for delivering the composition into the cavity, each brush having bristles which extend into the cavity (9) to wipe against the end of the pipe, each aperture being closer to the opening of the cavity than to a base of the cavity. There is further provided an applicator device (1) comprising a supplementary brush for wiping the composition over an internal surface of the pipe, a container (60) of flux composition for connecting to the applicator device, and a method of applying a composition to an end of a pipe.

An epoxy coating can be applied to a round surface by keeping the round surface in constant motion, thus defeating the tendency of the epoxy to run off the outer surface of the round object. The process is aided by mechanical equipment that rotates the cylindrical object about its center, while also permitting adjustment of rotational speed.

A cup rotation system can include a motor configured to rotate a shaft, a form engagable with a cup, a first coupler engaged with the shaft, a second coupler engaged with the form, and a magnet fixed to the first or second coupler. At least a portion of the system is formed of a ferromagnetic material, and the magnet removably connects the second coupler to the shaft via magnetic coupling to render the form in rotatable communication with the shaft.

A girth weld coating machine has an application head rotatable about a pipeline. A reservoir of coating material is carried on the application head and progressively dispenses coating material on to the girth weld. The coating material is applied to the pipe surface by a roller to spread and distribute the coating over the surface.

A girth weld coating machine has an application head rotatable about a pipeline. A reservoir of coating material is carried on the application head and progressively dispenses coating material on to the girth weld. The coating material is applied to the pipe surface by a roller to spread and distribute the coating over the surface.

Coating apparatus for coating cylindrical hollow bodies, having a machine frame and a workpiece rotary table which is equipped with a plurality of holding mandrels mounted rotatably on the workpiece rotary table, and having a coating station arranged on the machine frame, wherein the coating station includes a rotatably mounted coating roller, wherein axes of rotation of the holding mandrels and an axis of rotation of the coating roller are aligned parallel to one another, wherein the coating roller has a coating region and a free-wheeling region on a circumferential surface, the coating region being designed as a circular cylinder segment with a constant circular radius coaxial with the axis of rotation of the coating roller, and the free-wheeling region being formed from surface sections which each have a distance from the axis of rotation of the coating roller which is smaller than the circular radius.

The present disclosure relates to a multi-core optical fiber cable (MCF). In some embodiments, an MCF comprises a plurality of cores surrounded by a cladding and a coating surrounding the cladding, wherein a refractive index of one or more of the plurality of cores is greater than a refractive index of the cladding. The MCF further comprises a probe comprising a probe tip coupled with a distal end of the MCF and a lens located at a distal end of the probe tip. In some embodiments, the lens is configured to translate laser light from the distal end of the MCF to create a multi-spot pattern of laser beams on a target surface and a distal end of the MCF terminates at an interface with the lens.

Certain aspects of the present disclosure provide a thermally robust laser probe assembly comprising a cannula, wherein one or more optical fibers extend at least partially through the cannula for transmitting laser light from a laser source to a target location. The probe assembly further comprises a lens housed in the cannula and a protective component press-fitted to the distal end of the cannula, wherein the lens is positioned between the one or more optical fibers and the protective component.