Abstract: Extruded thermoplastic members, particularly structural members, are reinforced by longitudinally extending pre-stressed elements, such as filaments or matting. The elements, while under tension, are drawn into an extrusion crosshead die forming the thermoplasatic member. The elements are fully imbedded within the thermoplastic material while under tension and curing of the thermoplastic material, and final curing of the tensioned reinforcing elements, if a thermosetting resin impregnated element is used, occurs while the elements are under tension, the material of the member and the elements intimately bond and the tension forces within the elements reinforce the member at the desired locations. The forming of the reinforced member is a continuous operation.

Abstract: The invention pertains to a system for handling pump or sucker rod for oil wells wherein the sucker rod is formed of a continuous length of glass fiber rod, i.e. glass filaments embedded within a resin. The rod is stored upon a reel and is dispensed therefrom when inserting the rod into a well, or is wound upon the reel when removing the rod. In embodiments of the system, the reel is power operated, or the rod may be directly engaged and driven adjacent the well. The rod is supported at transition locations to prevent stresses which would tend to delaminate the filaments, and fittings are disclosed for mounting upon the rod, or retrieving broken rod.

Abstract: Apparatus for forming an antenna of the self standing type suitable for use with citizen band radios and the like wherein the antenna conductor is embedded within a resin jacket. A plurality of glass fibers are dispensed from spools to form four strands equidistantly disposed about a needle through which the antenna conductor is pulled. The conductor and strands are therein immediately drawn into a gathering die, and the assembly is shaped and cured within an elongated cylindrical heated glass tube for curing purposes. After curing the antenna is cooled and then cut to length.

Abstract: The invention pertains to a method for forming a construction member of glass fiber elements impregnated with a hardened resin. The method includes the interposing of elongated, high density, glass fiber rods consisting of a plurality of longitudinally disposed glass fibers bonded together with a hardened binder resin while under tension between layers of glass fiber fabric impregnated with a hardenable resin. The resin of the fabric impregnates the interstices between the rods forming a high strength integral, homogeneous, bonded member. The method of the invention is used to form plank type members of linear or curved configuration wherein a mold is usually utilized.