A composite structural component comprises an elongate member made of a polymer matrix composite material. The elongate member comprises a main portion extending along an axis A and an end portion with an inner surface extending from the main portion to an open end of the member. The composite structural component also comprises an end fitting forming a mechanical joint with the end portion, the end fitting comprising an internal portion positioned captive within the elongate member in contact with the inner surface of the end portion; an external portion positioned in contact with an outer surface of the end portion; and an adjustable fastener extending axially between the internal and external portions to clamp the end portion between the internal and external portions. The inner surface of the end portion in contact with the internal portion extends towards the axis A at an increasing angle to the axis A.

A system (15) for manufacturing a reinforcing element (1) for reinforced concrete comprises a feeder (16) of a reinforcing fiber bundle (2) along a pultrusion path (4), an impregnating device (17) which impregnates the reinforcing fiber bundle (2) with a liquid thermoplastic polymeric resin (6) to obtain an impregnated fiber bundle (2), a forming channel (8) through which the impregnated fiber bundle (2) is conducted, a solidification device (19) of the composite thread (9) forming a solidified thermoplastic fiber-reinforced bar (11), a pulling device (20) which holds the reinforcing fiber bundle (2) taut along the pultrusion path (4), a winder (21) which winds the solidified bar (11) to form a coil (14), a provisional bending device (22) which bends the composite thread (9) not yet solidified or heats the solidified bar (11) to soften it, bends the heated bar (11) and then cools the bar (11) to solidify it again, so as to confer a continuous provisional curvature to the solidified bar (11) in the direction of the subsequent winding in the coil (14).

Disclosed is a composite beam structure having: an end piece, an end piece outer periphery surface, and an end piece mating end defining an end piece axial boundary, the end piece includes wedge-shaped inner locking features that are formed to project outwardly from the end piece outer periphery surface at the end piece mating end and are spaced apart from one another in the hoop direction; and a composite tube configured to surround at least a portion of the end piece mating end to form a beam joint, wedge-shaped imprints are formed through the composite tube, corresponding to the wedge-shaped inner locking features, the wedge-shaped imprints define respective composite tube wedge-shaped depression surfaces about a composite tube inner periphery and composite tube wedge-shaped boss surfaces about a composite tube outer periphery, and the wedge-shaped inner locking features of the end piece are covered by the composite tube wedge-shaped depression surfaces.

The invention includes a method of bonding a perfluoroelastomer material to first surface that includes: (a) contacting a first surface with a bonding agent comprising a curable perfluoropolymer and a curing agent; (b) curing the bonding agent to form a perfluoroelastomer material that is bonded to the first surface. In the practice of such method, the bonding agent may be a solution prepared by dissolving the curable perfluoroelastomer and the curing agent in a solvent. In an embodiment of the invention, the perfluoroelastomer material formed in step (b) is a coating layer or, alternatively, the first surface is a surface of a perfluoroelastomer member and the perfluoroelastomer material formed is a perfluoroelastomer weld.

The present invention relates to a jack stand. The jack stand includes a base. A post, including composite material, extends from the base. The jack stand also includes a top for topping the post and for engaging with a load. Advantageously, the post may be lightweight (typically less than 12 kg) enabling the jack stand to be conveniently moved by a single person without exposing the person to significant risk of injury. The jack stand may be moved as a whole, or in parts.

A tie rod that includes a central section, a first tapered section, and a second tapered section. A thermoplastic tube extends the length of the tie rod. The first tapered section includes a first insert positioned within the thermoplastic tube. The second tapered section includes a second insert positioned within the thermoplastic tube. A channel extends through the tie rod along the central section, the first tapered section, and the second tapered section.

The invention includes a method of bonding a perfluoroelastomer material to first surface that includes: (a) contacting a first surface with a bonding agent comprising a curable perfluoropolymer and a curing agent; (b) curing the bonding agent to form a perfluoroelastomer material that is bonded to the first surface. In the practice of such method, the bonding agent may be a solution prepared by dissolving the curable perfluoroelastomer and the curing agent in a solvent. In an embodiment of the invention, the perfluoroelastomer material formed in step (b) is a coating layer or, alternatively, the first surface is a surface of a perfluoroelastomer member and the perfluoroelastomer material formed is a perfluoroelastomer weld.

A composite tube may include a body having a longitudinal centerline axis and an end portion having a tapered section and an end rim. At least one of a radially outward edge and a radially inward edge of the end rim may be non-circular. The end rim may be circumferentially continuous. The end rim may be an undulating annulus. A joint assembly may include a support wedge that at least partially engages at least one of a radially inward surface of the end portion and a radially outward surface of the end portion of the composite tube.

An apparatus for forming a composite shaft may comprise an axial fiber strip dispensing assembly and a hoop fiber strip dispensing assembly. The axial fiber strip dispensing assembly may include a plurality of fiber strip guides located circumferentially about a center axis. The plurality of fiber strip guides may be configured to dispense a plurality of circumferentially adjacent first fiber strips with the plurality of circumferentially adjacent first fiber strips extending in a generally axial direction. The hoop fiber strip dispensing assembly may be configured to dispense a second fiber strip circumferentially about the center axis.

A roll rod for a vehicle includes: a front insulator connected to a powertrain; a rod bracket to mount the front insulator on a front end portion of the rod bracket; a case bracket disposed outside the rod bracket and fastened to a vehicle body; a stopping rubber formed at a rear end portion of the rod bracket and disposed in an inner space defined by the case bracket; and a rear insulator formed between the rod bracket and the case bracket, where the rear insulator is secured to an outer side surface of the rod bracket and an inner side surface of the case bracket. The roll rod enhances an insulation rate against vibration of a powertrain and improves durability while reducing manufacturing costs through the simple structure and application of an extrusion molding method.