Abstract: A reinforced pipeline liner designed to facilitate installation and systems and methods for producing and installing a reinforced pipeline liner. A reinforced pipeline liner can comprise a body portion having a layer of matrix material, the layer having an inner surface and an outer surface, and a plurality of interspersed reinforcement structures embedded within the body portion. The reinforcement structures are positioned between the inner surface and outer surface of the layer and circumferentially offset from the other reinforcement structures. Additionally, the body portion may have multiple thicknesses.

Abstract: A hybrid composite sample holders utilized to further improve overall strength-to-weight of a centrifuge rotor. The holders comprise a metal portion and a fiber composite portion integrally molded.

Abstract: A centrifuge rotor which makes use of a composite ring to support a segmented core body. The core body is segmented into sectors. The core segments are slidably coupled to a hub in a manner such that they can move radially relative to the hub upon centrifugation with substantially no radial tensile stress build up in the coupling between the hub and the core segments and within the segment cores. In another aspect of the present invention, to augment the segmented core rotor, hybrid composite sample holders are utilized to further improve overall strength-to-weight of the rotor. The holders comprise a metal portion and a fiber composite portion integrally molded.

Abstract: A composite rotor body has a drive hole insert attached. The drive hole insert seats along a conical surface. A disk spring bears against a washer, which in turn bears against the top surface of the composite material rotor body. The preloaded disk spring compresses the conic surface of the rotor body against the mating surface of the drive hole insert. The preload within the disk spring is activate by torquing centering nut until the disk spring is essentially flat. The centering nut captures and centers both the disk spring and washer within a counterbored recess on its bottom face. The contact surface is treated with a form of dry lubricant or release agent, typically particulate Teflon, such that axial translation is facilitated. The disk spring is sized such that the drive hole insert translates axially without rotation along the surface and, effectively, maintains constant in-plane orientation with respect to the rotor body.