Abstract: An isolator includes a first fluid-carrying member and a second fluid-carrying member; and a resistive, semi-conductive or non-conductive component located between the first and the second fluid-carrying member. The component conveys fluid flowing from the first fluid-carrying member to the second fluid-carrying member. The isolator further has a reinforcing composite encircling the first fluid-carrying member, the second fluid-carrying member and the component. The reinforcing composite having first fibers extending at an angle of between ?30 degrees and +30 degrees to a longitudinal axis (A-A) of the resistive, semi-conductive or non-conductive component; second fibers interwoven with the first fibers and extending around the first fluid-carrying member, the second fluid-carrying member and the component at an angle of between +60 degrees and +90 degrees and/or between ?60 degrees and ?90 degrees to the longitudinal axis (A-A); and a resin.

Abstract: An electrical isolator includes a first fluid-carrying member and a second fluid-carrying member spaced apart from the first fluid-carrying member in an axial direction and a resistive, semi-conductive or non-conductive component located between the first and second fluid-carrying members. The component is adapted to convey fluid flowing from the first fluid-carrying member to the second fluid-carrying member. The isolator also include a first fluid sealing member provided between the first fluid-carrying member and the component, a second fluid sealing member provided between the second fluid-carrying member and the component, and a reinforcing composite encircling the first fluid-carrying member, the second fluid-carrying member and the resistive, semi-conductive or non-conductive component. A a radially inner portion of the component separates the first fluid-carrying member and the second fluid-carrying member by an axial distance.

Abstract: A bonding wire conductively connected to a pipe having a pipe body and a conductive tab mounted to the pipe and having a hole therein, the bonding wire being in the form of a braided conductive cable provided with a connector at each of its ends, the bonding wire being tightly wound around the pipe body and the ends both passing through the hole in the connector such that the ends of the bonding wire extend away from the pipe body after passing through the hole, while a portion of the bonding wire between the end portions is wrapped tightly around the pipe body; the bonding wire held under tension around the pipe body by a crimp around the two end portions where they pass through the hole.

Abstract: An electrical isolator includes comprising: a first fluid-carrying member a second fluid-carrying member spaced apart from the first fluid-carrying member to form a gap; a resistive, semi-conductive or non-conductive component extending across the gap and bonded to the first and second fluid-carrying members so as to provide a fluid tight seal between the first fluid-carrying member and the resistive, semi-conductive or non-conductive component and between the second fluid-carrying member and the resistive, semi-conductive or non-conductive component. The isolator also includes a reinforcing composite encircling the first fluid-carrying member, the second fluid-carrying member and the resistive, semi-conductive or non-conductive component.

Abstract: A method and apparatus for forming at least one external annular flange (48 or 49) adjacent one end of a fiber reinforced thermoplastic tube (10) in which the tube (10) is mounted on a mandrel (12) and a first end portion of the tube is clamped in a collar (13) having at least one internal annular cavity (18 or 19) for forming a flange, a second end portion of the tube in the region (R1, R2) of the cavity is heated to soften the thermoplastic, and an axial load (L) is applied to the end of the tube by a piston (24) causing the softened tube to flow into the cavity (18, 19) in the collar (13) to form a flange on the tube.

Abstract: A method and apparatus for forming at least one external annular flange (48 or 49) adjacent one end of a fibre reinforced thermoplastic tube (10) in which the tube (10) is mounted on a mandrel (12) and a first end portion of the tube is clamped in a collar (13) having at least one internal annular cavity (18 or 19) for forming a flange, a second end portion of the tube in the region (R1, R2) of the cavity is heated to soften the thermoplastic, and an axial load (L) is applied to the end of the tube by a piston (24) causing the softened tube to flow into the cavity (18, 19) in the collar (13) to form a flange on the tube.

Abstract: A method and apparatus for forming at least one external annular flange (48 or 49) adjacent one end of a fiber reinforced thermoplastic tube (10) in which the tube (10) is mounted on a mandrel (12) and a first end portion of the tube is clamped in a collar (13) having at least one internal annular cavity (18 or 19) for forming a flange, a second end portion of the tube in the region (R1, R2) of the cavity is heated to soften the thermoplastic, and an axial load (L) is applied to the end of the tube by a piston (24) causing the softened tube to flow into the cavity (18, 19) in the collar (13) to form a flange on the tube.

Abstract: A method and apparatus for forming at least one external annular flange (48 or 49) adjacent one end of a fibre reinforced thermoplastic tube (10) in which the tube (10) is mounted on a mandrel (12) and a first end portion of the tube is clamped in a collar (13) having at least one internal annular cavity (18 or 19) for forming a flange, a second end portion of the tube in the region (R1, R2) of the cavity is heated to soften the thermoplastic, and an axial load (L) is applied to the end of the tube by a piston (24) causing the softened tube to flow into the cavity (18, 19) in the collar (13) to form a flange on the tube.

Abstract: A method of forming a fibre reinforced thermoplastic composite tube (P) in which reinforcing fibres (10) and thermoplastic resin matrix material (12) are placed around a mandrel (M) to provide a composite tubular pre-form (20) on the mandrel (M) which is then passed through a heated die (30) to compact and reduce the diameter of the pre-form (20) and change the state of matrix, the mandrel (M) with the formed tube (P) thereon exiting the die and the now formed tube (P) is removed from the mandrel, the composite tubular pre-form (20) being produced by winding reinforcement fiber (10) and thermoplastic fiber (11) onto the mandrel, the thermoplastic matrix being caused to flow and then solidify on cooling.

Abstract: A fiber reinforced composite shaft bearing a metallic flanged end coupling attached to the outside diameter through a concentric cylindrical torsional joint is provided. The composite shaft is press fitted into a flanged metallic end coupling including a multiplicity of teeth running parallel to the tube axis which cut longitudinal channels into the outside diameter of the composite shaft wall during the press fit process. Pairs of inverted troughs adjacent to and running parallel to the cutting teeth in the serrated region allow space for the redistribution of the composite material and debris formed during the press fitting process. This combined action forms a mechanical interface capable of supporting torsional and axial stresses. A structural adhesive may be applied to the joint region to form a secondary joint. In this case the composite formed between the cutting debris and the adhesive fills the trough channels.

Abstract: A fiber reinforced composite shaft bearing a metallic flanged end coupling (Fl) attached to the outside diameter through a concentric cylindrical torsional joint, comprising: a) a cylindrical end region comprising a wedge shaped inner layer of fiber (Hp) composite; b) a layer of outer helical composite plies (He) forming the shaft and extending over the wedge shaped inner layer, wherein the layer of outer helical plies has a tapered end part overlying wedge shaped inner layer to form the cylindrical end portion, wherein all helical plies of fibre layers are exposed on an outer surface; and c) a metallic flanged end coupling attached to the outer surface of the cylindrical end region through a primary mechanically interface (Sp) which may be splined. The joint may be strengthened by internally reinforcing the main shaft with an interference fit tubular plug (Pg) and protected from environmental degradation by inboard secondary adhesive bond (Ad).