Abstract: The invention relates to a hollow fiber-reinforced plastic body comprising a curable resin-impregnated winding of high-strength fibers. To provide a strong hollow fiber-reinforced plastic body having a quick-to-make wall thickness the invention proposes that a double-walled shell which surrounds the hollow body interior is made by a first winding of one or more tapes of an uncut double pile cloth having a spaced-apart top cloth and bottom cloth and also binding pile threads which is covered by an outer winding, the windings being impregnated with a curable resin.

Abstract: A self molding fiberglas to be used for building boats, swimming pools, spas, liquid storage tanks and pipes that eliminates the building of a mold first.

Abstract: A lightweight composite fiber wound tubular member or casing, such as a rocket motor case, has one or more openings formed through one end portion of the wall thereof by orienting the filaments or fibers around each opening to provide reinforcement for loads applied to fasteners passing through said openings. The orientation of the filaments or fibers is such as to receive and transfer loads applied to the walls of the openings in the tubular member in a direction substantially parallel to the axis of the tubular member. A method of manufacturing the tubular member is disclosed which includes winding the filaments or fibers along a helical path and around the area defining each opening, together with the apparatus for performing the method.

Abstract: A receptacle comprises a circularly cylindrical wall having a closing end wall connected to each end. All of the walls are made of a fiber reinforced plastic resin material and the circularly cylindrical wall has at least two radially spaced layers with at least one of the layers having reinforcing glass fibers therein oriented in a circumferential direction with an intermediate layer between the spaced layers containing a mineral granular material embedded in the resin. The vessel is made either by forming a completely cylindrical intermediate wall and joining rounded end sections to the intermediate wall at each end by an overlapping joint or by an abutting joint which is closed on the exterior by an encircling band. Alternately, the separately fabricated end parts may be joined together by centrifugally forming an intermediate circularly cylindrical wall between them.

Abstract: A lightweight composite fiber wound tubular member or casing, such as a rocket motor case, has one or more openings formed through one end portion of the wall thereof by orienting the filaments or fibers around each opening to provide reinforcement for loads applied to fasteners passing through said openings. The orientation of the filaments or fibers is such as to receive and transfer loads applied to the walls of the openings in the tubular member in a direction substantially parallel to the axis of the tubular member. A method of manufacturing the tubular member is disclosed which includes winding the filaments or fibers along a helical path and around the area defining each opening, together with the apparatus for performing the method.