A composite structure (1) for an aircraft, having at least one insert (2) for receiving attachment devices, each insert (2) includes a core (3) having a major dimension and containing at least one through-hole (4), and a composite strip arrangement formed by a first section (5) surrounding the core (3) and attached to said core (3) by an adhesive polymeric layer, and a second section (6) including at least one free end (6a). The first (5) and the second portion (6) of the composite strip arrangement are disposed over a first surface (1a) of the composite structure (1), such that the major dimension of the core (3) is positioned transversal to said first surface (1 a). The at least one insert (2) is co-cured with the composite structure (1).

An eversion liner for lining a pipe includes an impermeable outer portion, inner and outer strength portions inside the impermeable outer portion, and a middle portion including at least one felt layer radially between the inner and outer strength portions. At least one of the inner and outer strength portions is formed from a unitary sheet of strength material that includes parallel chopped strands of fiber. The longitudinal edge margins of the sheet of strength material are positioned in overlapping engagement and joined together by joining structure. The parallel chopped fibers can be oriented transverse to the length of the liner. The joining structure can prevent reduction in a width of the overlapped edge margins as the liner expands during eversion.

A method for sealing a seam in a fabric provides for joining at least one piece of a stretchable, one-ply woven fabric to another fabric such as another stretchable one-ply woven fabric, and for sealing the seam with a strip of another piece of fabric with an adhesive laminated thereon. The stretchable one-ply woven fabric includes elastic and inelastic fibers. A seam is produced in which the fabric fibers adhere to the seam and do not pull back from the seam. Also provided is a method for forming a hem and sealing the hem with a strip of another piece of fabric, to produce a hem that is resistant to fiber slippage. The method is advantageously used to form denim and other garments from woven fabrics that include at least 65% natural fibers along with various elastomeric fibers.

A jointed wind turbine rotor blade includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint line. Each of the blade segments includes a pressure side shell member and a suction side shell member. A sealing tape is applied over the shell members so as to bridge across the chord-wise joint line. The sealing tape includes side edges that are aligned parallel with airflow over the shell members at the chord-wise joint line at a defined load and operational condition on the jointed wind turbine blade.

A method for connecting components having a fibre-reinforced thermoplastic plastic includes provision of a first component with a first joining surface, provision of a second component with a second joining surface, flush placement of the first joining surface against the second joining surface in order to form a connection joint, placement of a friction stir welding tool against the connection joint, or a surface directly adjacent thereto, of at least one of the components, softening of the first component and the second component, in each case in a region adjacent to the connection joint, by rotation of the tool, such that the thermoplastic plastic of the two components locally fuses, and movement of the tool along the connection joint for the purposes of connecting the two components by formation of a fusion seam, wherein portions of reinforcement fibres are stirred in to increase the strength of the fusion seam.

A medical gown (701) includes a layer of material (100) with a seam (401) disposed across the layer of material. The material can include a weave (110) of untwisted, continuous filament polyester. The material can also include a carbon filament (109). The seam is sealed by applying a tape (200) across the seam and applying heat to cause the tape to attach to the weave.

A process of constructing an air tight and water tight seam, comprising cutting a sheet of selected material into two or more panels, sealing the panels at respective selected edges using an ultrasonic machine to form a seam, overlaying the seam with a tape made of the same selected material, and sealing the tape and seam using a radio frequency (RF) welding machine.

A ultrasonic sealing anvil has a strip-shaped pressing surface that faces a vibration applying surface of an end of a horn and extends along a welding position of sheet members, the pressing surface having a step and a pair of extending surfaces, the step having a concave shape formed at a position at which the step abuts a thick layer portion with a relatively large thickness of the laminated sheet members and having inclined surfaces on both left and right sides, the pair of extending surfaces being continuous to the respective inclined surfaces on the both left and right sides of the step and extending leftward and rightward along the welding position with the step interposed therebetween, wherein the inclined surface has one or more grooves that extend in a width direction of the pressing surface.

An insulating insert is positioned around a field joint of a pipeline to insulate the field joint. The insert includes a longitudinal series of annular or part-annular filler segments of insulating material, curved about a longitudinal axis, that are each joined to one or more adjacent segments of the series by at least one link. The links may be webs, rods or articulated links. The links are flexible relative to the segments to facilitate bending of the insert along its length by enabling relative angular displacement between adjacent segments of the series.

The present invention relates to a band-like joint tape for covering a butting portion formed by butting an end portion of a one packing film to an end portion of another packing film and connecting the respective end portions of these packing films to each other. The joint tape is comprised of a laminate film formed by adhering a joint layer to a support layer at a peelable state, and covered so as to face the joint portion. to the butting portion and heat-sealed so that the joint layer is fused to the butting portion and the fused portion of the joint layer is peeled off from the support layer.