An improved shaped composite rebar is disclosed.

A golf putter has a shaft of composite materials, a putter head having a stud for mounting to the shaft of composite materials, and a grip affixed to the shaft. The shaft is a hollow shaft and the surface is sanded and cleaned before a first layer of pre-preg material is rolled onto the shaft and secured with an adhesive layer. At least one additional layer of the pre-preg material is rolled onto the first layer of the pre-preg material and secured using adhesive. Additional layers of pre-preg material may be applied to the hollow shaft. Cellophane is wrapped on top of the at least one layer of the pre-preg material prior to heat curing of the hollow shaft. After heat curing, the cellophane is removed and the surface is sanded and decorated.

The manufacture of structural elements for aircraft requires the use of complex and costly methods, particularly in the case of parts of elongate overall shape and variable thickness or cross section made of composite material. The disclosure herein proposes to overcome this problem by a method that allows the manufacture of a structural part from a preform made of composite material of simple shape obtained by pultrusion and of one or more reinforcing elements made of composite material and secured by cocuring with the preform to a region of this preform which region is to be reinforced.

A fishing rod that includes an elongated, tapered rod blank at least a portion of which is quadrilateral in cross section, the quadrilateral portion of the rod blank diminishing in cross-sectional area toward a tip end of the rod blank, the quadrilateral portion of the rod blank comprising a sandwich-structured composite of a core disposed between facings, the core less dense than the facings, the quadrilateral portion of rod blank less stiff in a casting direction than transverse to the casting direction; fishing line guides mounted at intervals along the length of the rod blank; a reel seat mounted at the base end of the rod blank; and a handle mounted at the base end of the rod blank adjacent to the reel seat.

An improved shaped composite rebar is disclosed.

A method of making a golf shaft, and a shaft made thereby, for connection to a golf club head including a first upper section having a first diameter and an upper butt end; a second lower section having a second lesser diameter than said first diameter and a having a lower tip end for connection to the golf club head; and, a gradually tapering intermediate section connected between the first upper section and the second section that reduces the outside diameter of the shaft from the diameter at the upper section to the diameter of the lower section. The location of the intermediate section relative to the upper butt end of the shaft is determined by a weight value of the shaft such that as the weight of the shaft becomes lighter, the tapered intermediate section is located closer to the upper butt end of the shaft and the tapered intermediate section is located further from the upper butt end of the shaft as the shaft becomes heavier.

The forming apparatus comprises a feed path for continuously feeding a continuous tow material along a transport direction, a forming device connected to a downstream end of the feed path and adapted to form the continuous tow material into a continuous tubular rod. The forming device comprises a tubular element adapted to allow the continuous tow material to pass through the tubular element to form the continuous tubular rod and a steam generator adapted to generate overheated steam. The steam generator is in fluid connection with the tubular element to provide overheated steam to the continuous tow material. The forming device further comprises several fluid conduits to provide overheated steam from the steam generator to several injection sites arranged along a length of the tubular element, wherein at least one fluid conduit of the several fluid conduits comprises a temperature control unit including a temperature sensor and a temperature influencer.

A method of producing a reinforcing bar (rebar) includes: arranging one or more thermoplastic polymer fibers (2) in a central portion of a cross-section; arranging a plurality of non-metallic reinforcing fibers (1) on an outer periphery of the thermoplastic polymer fiber(s) (2); heating the thermoplastic polymer fiber(s) (2) to its (their) melting temperature or higher to melt the thermoplastic polymer fiber(s) (2); and cooling the melted thermoplastic polymer to form a bar-shaped polymer layer (91) in the central portion of the cross-section and a fiber-reinforced polymer layer (92) on an outer periphery of the bar-shaped polymer layer (91).

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.

The invention belongs to the technical field of building materials, mainly relates to a high-strength carbon fiber composite bar with resin ribs on the surface, and a preparation method thereof. The invention comprises a carbon fiber and an epoxy resin matrix, wherein continuous spiral epoxy resin ribs are arranged on the surface of the bar, the thickness of the resin ribs is within 0.2 mm-0.4 mm, the width of the resin ribs is within 5 mm-7 mm, and the pitch of the resin rib is within 2 mm-4 mm. According to the present invention, during the forming process, the nylon belt winding of the present application does not squeeze the carbon fiber bundle, and due to tension of the carbon fiber bundle, the carbon fiber bundle remains straight along the lengthwise direction of the bar. Therefore, the bar manufactured by the method of the present invention has the characteristics of high strength and high modulus.