Abstract: A rubber plastic composite cylinder that has a cylindrical hollow elastomeric body bonded internally to a shaft and its external surface bonded to a cylindrical sleeve of ultra high molecular weight polyethylene which includes the bonding as by vulcanization two outer shells of ultra-high molecular weight polyethylene to the elastomeric cylinder to place the elastomeric cylinder in compression. Such composite cylinder may be spaced along a shaft or utilized effectively as a coaxial shear spring or as conveyor rollers.

Abstract: A bearing assembly for supporting a drive shaft, having a housing with a central bore in which is mounted a shell with a polygonal shaped opening, a plurality of circumferential spaced staves are mounted in the polygonal opening presenting a plurality of flat planar surface that tengentially contact a drive shaft. The staves have a outer layer made of high molecular weight and an inner layer made of an elastomeric material. The staves are retained within the polygonal opening with the retainer rings. A method for manufacturing such a bearing assembly is disclosed, the method comprising placing a plurality of laminated, trapezoidal shaped staves about a polygonal shaped mandrel; wrapping a fiber fabric about the outer periphery and curing a resin coating placed thereon; and securing a pair of annular retainer rings thereabout to secure the staves to the cured shell.

Abstract: The method of making a non-metallic bearing assembly by initially molding a flat longitudinally extending sheet of rubber containing a ply or plies of fiberglass reinforced fabric therein, then cutting such sheet into a plurality of strips. The flat strips are then located around the periphery of a mandrel that is then wound with fabric which is impregnated with epoxy resin, then cured and machined to a cylindrical bearing.

Abstract: A high angle conveying apparatus including a conveyor belt and a cover belt trained for movement in endless paths of travel. An improved roller assembly is provided for providing fully equalized pressure to the back face of the cover belt for improved performance.

Abstract: A fender system for a floating structure such as an off-shore platform wherein a column supporting the platform has a plurality of vertically spaced rail members that are interconnected by a plurality of horizontally spaced and vertically extending bumpers that can be contacted by a vessel for transmitting the force therefrom to the fender system. The rail members support a plurality of spaced shafts on which are mounted pairs of interconnected torsion spring members that are operative to exert opposing forces while bearing on the column to absorb the forces exerted on the fender system.

Abstract: A laminated vibration isolation pad comprising first or top rigid layer of ultra-high molecular weight polyethylene material, a second layer of vulcanized elastomeric material with an additional third or bottom layer of spaced resilient vulcanized elastomeric projections. The laminated vibration isolation pad is fabricated as a unitary structure with the polyethylene layer bonded or fused to the rubber layer while being formed.

Abstract: A bearing assembly for supporting a drive shaft, having a housing with a central bore in which is mounted a shell with a polygonal shaped opening, a plurality of circumferential spaced staves are mounted in the polygonal opening presenting a plurality of flat planar surface that tengentially contact a drive shaft. The staves have a outer layer made of high molecular weight and an inner layer made of an elastomeric material. The staves are retained within the polygonal opening with retainer rings.

Abstract: The present invention is directed to swivel means for use in connecting pairs of axially spaced risers in an off-shore multi-line riser system the conveys petroleum from a collection point on the ocean floor to a floating buoy for delivery to tankers. The swivel permits considerable latitude in the movement of the riser system yet assuring leak proof joints at the points of movement by providing elastic seals that facilitate motion between conveying conduits.

Abstract: The present invention is directed to slip joint means for use in connecting pairs of axially spaced risers in an off-shore multi-line riser system that conveys petroleum from a collection point on the ocean floor to a floating buoy for delivery to tankers. The slip joint permits considerable latitude in the movement of the riser system yet assuring leak proof joints at the points of movement by providing elastic seals that facilitate motion between conveying conduits.

Abstract: A laminated vibration isolation pad comprising first or top rigid layer of ultra-high molecular weight polyethylene material, a second layer of vulcanized elastomeric material with an additional third or bottom layer of spaced resilient vulcanized elastomeric projections. The laminated vibration isolation pad is fabricated as a unitary structure with the polyethylene layer bonded or fused to the rubber layer while being formed.

Abstract: The method of making a non-metallic bearing assembly by initially molding the inner portion of the bearing as a flat longitudinally extending strip having a plurality of spaced abutments. The flat strip is then rolled into a hoop and then wound with fabric as such fabric is impregnated with epoxy resin.

Abstract: A replaceable torsion type spring assembly or unit having a resilient elastomeric tubular member with one end of such tubular member secured to a stationary member and the other end of such tubular member secured to a member that has force applied thereto for rotating such last member. A hollow tubular member is loosely journaled internally of the resilient elastomeric tubular member to provide support to the spring assembly.

Abstract: An interconnecting device for use with a plurality of spaced floating breakwater columns comprising a plurality of spaced spherical elements wherein each element is encompassed by a pair of flanged hemispherical plate members. A hollow rubber spherical member is secured to the interior surface of the hemispherical plate members and abuttingly engages the spherical element. A pair of plate members interconnect the flanged hemispherical plate members to provide an integral assembly unit with the rubber element providing resiliency. Each spherical element has an outwardly projecting hub that is flanged to permit its attachment to the breakwater columns.

Abstract: The method of making a perforated particle screen having a base layer or high density polyethylene low melting index thermoplastic material with a cover layer of elastomeric material vulcanized integrally with the base layer. The method includes providing a mold with inserts for forming the perforations, filling the mold with granular plastic, covering the plastic with uncured elastomer and applying heat and pressure to the elastomer to vulcanize same integrally with the plastic as it melts and flows in the mold.