A metal to composite tube joint including selecting an elongated interior fitting constructed with an exterior barrel, reduced in exterior diameter to form a distally facing annular shoulder and then projecting still further distally to form an interior sleeve having a radially outwardly facing bonding surface. A metal outer sleeve formed proximally with a collar constructed for receipt over the barrel and increased in interior diameter and projecting distally to form an exterior sleeve having a radially inwardly facing bonding surface cooperating with the first bonding surface to form an annulus receiving an extremity of a composite tube and a bond bonding the extremity of the tube to the bonding surfaces.

The method of providing a connector suited for quickly connecting and testing joints of pipe for a subsea pipeline and similar applications by concurrently locking, preloading, sealing and testing of the connection to eliminate the usual sequential time requirements for each of these operations. Additionally, time for coating and X-Ray inspection of the welded connection in critical path time are eliminated as the welding and coating operations are able to be done on shore in non-critical path time.

An elongated pipe may include a fiber reinforced polymer composite joining member for joining sections of pipe together. A pipe joint and elongated pipe may include at least two pipe sections having ends that are joined together with the joining member. The pipe joint and elongated pipe are formed by joining abutting ends of adjacent pipe sections with the joining member without the need for the adjacent pipe sections to have other connection means, such as standard bell and spigot end connections. A method may include joining pipe sections with the joining member to make an elongated pipe.

Provided herein are adhesive compositions comprising a polyurea-poly(meth)acrylate interpenetrating polymer network. Further provided are two-part curable adhesive compositions comprising a Part A initiator composition and a Part B activator composition. The Part A initiator composition comprises an organoborane-amine complex and the Part B activator composition comprises an isocyanate that is reactive with the amine portion of the organoborane-amine complex to liberate organoborane from the organoborane-amine complex. Further provided are methods of using an adhesive composition comprising a polyurea-poly(meth)acrylate interpenetrating polymer network, such as, for example, in joining and/or bonding together polyolefin materials (e.g., polypropylene random copolymer (PP-R) pipes).

A method of joining fiberglass-reinforced composite pipes includes joining an inner tube of each pipe by fusion to form a fused bond, joining fiber reinforced polymer tubes of each pipe by depositing a silica glass particle epoxy directly on the fused bond and on bonded edges of the fiber reinforced polymer tubes as a composition to cover tube edges and the fused inner tube bond, and curing the composition.

Disclosed are joints and methods for forming joints of nonmetallic components such as piping components made from a nonmetallic composite material. The components are joined by an adhesive containing an x-ray absorbing additive for providing a contrasting signal in x-ray inspection of the joint. The joints can be nondestructively tested by positioning the joints relative to an x-ray source and an x-ray detector. The joints and the adhesive therein are then exposed to x-ray radiation from the source of x-ray radiation. The x-ray radiation, having passed from the x-ray source to the x-ray detector, is detected over an area and an x-ray image of the x-ray radiation detected is created. The x-ray image is then read to identify defects in the joint.

A conduit coupling device is provided for enabling a conduit coupling system and method. The conduit coupling device has two portions, a coupler and a cap, that adhere, respectively, to two separate conduits being coupled together. The coupler has a first tubular end and a second end that provides an arcuate cutout. The coupler provides a glue channel along the arcuate cutout. The inner surfaces of two ends engage outer surfaces of the two separate conduits, respectively. The cap is dimensioned and adapted to adhere to a portion of the outer surface of the second arcuate cutout conduit so as to provide a glue ridge there along. The glue ridge is dimensioned to be slidably received in the glue channel, thereby forming a locked engagement between the first and second conduits.

An airline couple that provide consumers a way to keep air lines connected while driving. The first airline couple includes a first airline connector extending forward, an airline clip including a planar rectangular tab that includes a pair of apertures disposed on the planar rectangular tab and a second airline connector extending back towards the airline clip, the airline clip is wrapped around the first airline connector and the second airline connector. The airline couple includes a piece of putty wrapped around each end of a first airline connector and a second airline connector, the piece of putty hardens between each end of the first airline connector and the second airline connector securing each end of the first airline connector and the second airline connector.

A fluid flow circuit assembly for a biological fluid processing device, comprising a PVC tubing comprising a polymeric plasticizer and/or a high molecular weight plasticizer having a molecular weight of 540 g/mol or more. The fluid flow circuit assembly also comprises a medical device component comprising a bond surface to which the PVC tubing is bonded by a solvent, wherein the bond surface comprises a polyester elastomer, plasticized PVC, and/or a polycarbonate.

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.