Disclosed is a method of applying a coating to a glass sleeve with an inner surface and an outer surface, the glass sleeve configured as a part of a solar-receiver tube. Thereby, the coating is solely applied to one of the surfaces of the glass sleeve. Also disclosed is a method of fixing such glass sleeve in an interior of a coating tank, such coating tank and a fixing arrangement for fixing such glass sleeve in an interior of a coating tank.

A prosthetic heart valve includes a base and a plurality of polymeric leaflets. Each leaflet has a root portion coupled to the base, and each leaflet has an edge portion substantially opposite the root portion and movable relative to the root portion to coapt with a respective edge portion of at least one of the other leaflets of the plurality of leaflets. Each leaflet includes) at least two polymers along at least one portion of the leaflet, and each leaflet has a composition gradient of each of the at least two polymers along at least one portion of the leaflet.

Disclosed is a coated metal pipe including a metal pipe and a multi-layered coating film that covers an outer circumferential surface of the metal pipe. The multi-layered coating film includes a chemical conversion layer and a primer layer, and these layers are provided in this order from the inside. The chemical conversion layer contains a zirconium oxide and/or a zirconium hydroxide. The primer layer contains a polyamide imide and/or an epoxy resin.

A composite hose assembly including a fluoropolymer inner tube and a jacket circumferentially surrounding the fluropolymer tube. The jacket is formed from a plurality of plaits of fiberglass lace or other material. The jacket is then coated or infused with different resins along an axial length of the tube to impart varying degrees of flexibility along its length. A method of making the composite hose assembly includes: providing a fluropolymer inner tube, forming a jacket by circumferentially wrapping a plurality of plaits of fiberglass lace or other material around the fluropolymer tube, and infusing the plaits with different resins along its length to vary the flexibility.

An apparatus and associated methods for an automated pipe doping apparatus. The apparatus may include a pump fluidly coupled to a reservoir and a dope manifold, the pump positioned to pump pipe dope from the reservoir to the dope manifold; an ejector coupled to the dope manifold, the ejector positioned to supply a fixed volume of pipe dope from the dope manifold to a dope distribution line; and a pipe dope applicator, the pipe dope applicator fluidly coupled to the dope distribution line positioned to deposit pipe dope on a threaded connection. In some embodiments, the pipe dope applicator may be a fan-pattern nozzle. In other embodiments, the pipe dope applicator may be a mold-type applicator. In other embodiments, the pipe dope applicator may be a brush-type applicator.

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.

Provided that a process for manufacturing an elastic roller having a mandrel and a coating film. The process comprise a first step of forming a coating film on an outer peripheral surface of a first mandrel, and a second step of forming a coating film on an outer peripheral surface of a second mandrel. The process further comprises a cleaning step between the steps. The cleaning step comprising: making a cleaning member arranged coaxially with the central axis of a circular coating head, in a downstream side in a moving direction of the first mandrel with respect to the circular coating head, making the cleaning member relatively approach the circular coating head; bringing a surface to be cleaned into contact with the cleaning member; rotating the cleaning member while the surface comes in contact with the cleaning member; and inserting the cleaning member into the center hole.

An apparatus and associated methods for a pipe doping apparatus is disclosed. The apparatus may include a pump fluidly coupled to a reservoir and a dope manifold, the pump positioned to pump pipe dope from the reservoir to the dope manifold. The automated pipe doping apparatus may include an ejector coupled to the dope manifold, where the ejector positioned to supply a fixed volume of pipe dope from the dope manifold to a dope distribution line. The automated pipe doping apparatus may also include a pipe dope applicator, the pipe dope applicator fluidly coupled to the dope distribution line positioned to deposit pipe dope on a threaded connection.

A method for manufacturing an elastic tubular body, comprises a first step of inserting a rod-like conductive member 2 into an elastic tubular body 1; a second step of giving a first electrical potential to the rod-like conductive member 2; and a third step of applying a coating material 31 charged to a second electrical potential to the elastic tubular body 1; wherein the rod-like conductive member 2 has a deformed cross-sectional shape in a direction vertical to an axial direction.

The present invention relates to a method of joining polymer coated steel pipes comprising the steps ofproviding polymer coated pipe segments with an uncoated length on both ends of the segments; welding the polymer coated pipe segments together; applying a curable polymer (A) onto the uncoated length of the welded pipe segments to form an first coating layer; andapplying a polymer composition (B) onto the first coating layer to form a topcoat layer with a thickness of 0.5 to 10 mm, wherein the polymer composition (B) has a melt flow rate MFR.sub.2 of 1.0 to 6.0 g/10 min, determined according to ISO 1133 at a temperature of 190 C. under a load of 2.16 kg, and includes a base resin comprising (B-1) a non-elastomeric polyethylene in an amount of 60 to 85 wt % of the total polymer composition being produced in a process using a single-site catalyst, and (B-2) an elastomer comprising a copolymer of ethylene and at least one polar comonomer, wherein component (B-1) or components (B-1) and (B-2) have been grafted with an acid grafting agent and the use of polymer composition (B) as topcoat layer with a thickness of 0.5 to 10 mm in a coating of coated steel pipe field-joints, a method of coating a steel pipe and the use of polymer composition (B) for the coating of steel pipe joints or steel pipes.