A sleeve is provided for covering a pipe joint formed between two pipes that are coupled to one another to form a tube. The sleeve comprises a heat-shrinkable material that is configured to conform to the first and second pipes when heated to cover the pipe joint.

A system for using an augmented reality (AR) enabled mobile computing device for performing one-touch registration of three-dimensional (3D) scans of an environment is provided. The system includes one or more processors, a mobile computing device, and a 3D scanner being movable from a first position to a second position. The processors are responsive to executable instructions which cause the 3D scanner at the first and second positions to determine 3D coordinates of a first and second collection of points on object surfaces in the environment. In addition, the 3D scanner receives an estimated location of the mobile computing device from the mobile device in response to the 3D scanner being in contact with the mobile computing device at the first and second locations. A registration of the first collection of points and the second collection of points is based on the estimated locations of the mobile computing device.

The invention discloses a method of manufacturing a handrail assembly including steps of 1) providing a first material layer and a second material layer, wherein the second material layer is a hot melt material; 2) stacking the second material layer on the first material layer to form a substrate layer with an integrated structure; 3) curling the substrate layer to form a handrail cover matching a handrail tube, wherein the handrail cover is a sleeve structure and the second material layer is located at an inner side of the handrail cover; 4) inserting the handrail tube matching the handrail cover into the handrail cover to form a handrail assembly semi-finished product; 5) baking the handrail assembly semi-finished product until the second material layer is completely melted; and 6) cooling the handrail assembly semi-finished product after baking to form the handrail assembly.

A filter medium including: a porous first support; nanofiber webs respectively stacked at the upper and lower parts of the first support, and made of a plurality of nanofibers of which the diameters have a standard deviation of 300 nm or less; and a porous second support interposed between the first support and the nanofiber web. The filter medium is implemented by fibers having uniform diameters, and thus is easily manufactured to have a predetermined pore diameter and simultaneously has excellent uniformity of the pore diameters, thereby having excellent filtering efficiency and being more suitable when selectively separating specific objects. Backwashing is enabled at uniform pressure during backwashing such that high cleaning power is obtained. The filter medium has excellent water permeability and excellent mechanical strength so as to minimize the shape and structural deformation and damage of the filter medium.

A method for forming a resin-based composite structure is provided. The method includes: providing a prepreg layup, wherein the prepreg layup includes an epoxy resin-carbon fiber composite material; covering a thermal-fusion material on a surface of the prepreg layup; and performing a molding and curing process to fuse the thermal-fusion material with the prepreg layup. Wherein the molding and curing process includes: heating at a first temperature to melt, soften and fully fuse the thermal-fusion material with the prepreg layup; and heating at a second temperature to solidify the thermal-fusion material for forming the resin-based composite structure. Wherein the first temperature is lower than the second temperature.

A preparation method of a polytetrafluoroethylene (PTFE)-based membrane for preventing and removing ices covering wind turbine blades is provided and the method comprises: preparing a membrane into a PTFE rod material with polymerized monomers by using monomer polymerization methods such as blending, pre-compressing and pushing; making the membrane into a PTFE-based homogeneous membrane with micropores and nano and micron scale concave-convex geometrical ultra-structure morphologies under the condition that the membrane is cracked to generate a laminar exfoliated fabric-like structure in the hot calendaring process of the PTFE rod material by using a hot calendaring and fusion polymerization method; and applying the PTFE-based homogeneous membrane to blades of a large wind turbine in operation.

A system and method of retroactively lining a vertical trash chute in a building. A tubular fabric liner is provided having a first open end and a second open end. The tubular fabric liner is infused with a resin. A first plug assembly is attached to the first open end. The tubular fabric liner is pulled through the vertical trash chute to position the tubular fabric liner in the trash chute. A second plug assembly is attached to the second open end. The tubular fabric liner is inflated. As it expands, the tubular fabric liner presses against the interior of the trash chute. This condition is maintained until the resin cures and bonds the tubular fabric liner to the trash chute. Once cured, the plug assemblies are removed, the tubular fabric liner is trimmed, and trash chute access openings are cut through the cured liner.

A polymeric film or laminate comprising the same is applied to at least a portion of a surface of an underlying article to provide, for example, desired surface characteristics. To assist in such application, a polymerizable composition is coated onto at least one of the surface of the polymeric film or the laminate and the surface of the article. The polymerizable composition is then polymerized with the polymeric film or laminate positioned thereover to form a sufficiently polymerized interlayer between the polymeric film or laminate and the underlying surface in resulting articles. Ease of removal and/or repair of polymeric film and laminates comprising the polymeric film that are so applied is facilitated.

A passivating flexible insulation blanket positionable about a pipe includes an insulation core, an enclosing fabric, and a non-consumable passivator. The insulation core is substantially hydrophobic and includes a microporous material. The enclosing fabric fully encapsulates the insulation core to form a capsule or pouch about the insulation core. The non-consumable passivator is non-consumable such that there is no appreciable change to a mass of the non-consumable passivator after an extended time of activation. The non-consumable passivator is deposited into the insulation core and has a composition soluble in water. The non-consumable passivator includes a leachable component that leaches from the insulation core and is capable of neutralizing acidic components. The leachable component is water soluble and is capable of reacting with a surface of the pipe to form a protective coating on the pipe to aid in inhibiting corrosion formation on the surface of the pipe.

The present invention relates to a composite coating for an inner tube delimiting a passageway for a fluid for obtaining a pipe for conveying fluids in HVACR systems.