Patent classifications
B29C53/566
Fiber reinforced composite stents
Polymeric composite stents reinforced with fibers for implantation into a bodily lumen are disclosed.
Energy absorbing tubes and methods of making the same
An energy absorbing structure configured to buckle in response to an impulsive load includes a facesheet and a micro-truss core coupled to the facesheet. The facesheet and the micro-truss core are wound together into a hollow tube structure. The hollow tube structure may have any shape suitable for the intended application of the energy absorbing structure, including prismatic shapes, non-prismatic shapes, axisymmetric shapes, and non-axisymmetric shapes. In one embodiment, the stiffness of the micro-truss core varies axially, radially, and/or circumferentially along the energy absorbing structure.
Systems and methods for making and/or using composite tube structures formed of hybrid laminates
Systems and methods for making and/or using a hybrid laminate composite tube structure. The methods comprise: wrapping a plurality of lamina layers around a male cylindrical tool (e.g., mandrel); treating the lamina layers with heat/pressure to form the hybrid laminate composite tube structure; and assembling a structure by adhesively bonding the hybrid laminate composite tube structure to a metallic fitting. The lamina layers comprise: at least one first lamina layer formed of a first material having a first CTE; and at least one second lamina layer formed of a second material different from the first material and having a second CTE different than the first CTE. The hybrid laminate composite tube structure has at least one property that is different in the axial direction than the hoop direction. An axial CTE of the hybrid laminate composite tube structure is tailored to provide a net zero CTE for the assembled structure.
Composite structures constructed of wound tubular braiding
A system for constructing a composite structure includes a braiding machine, a winding tool and a forming machine. The composite structure is constructed of a wound tubular braiding. The wound tubular braiding is constructed of a biaxial or triaxial tubular braid of unidirectional tape.
Pipe Consolidation Apparatus and Method
An apparatus and method for consolidating a pipe that has been wrapped with reinforcing tape, is provided. The apparatus comprises two or more pipe consolidation devices, each having a first end, a second end, and comprising: first and second support members arranged at the first end and having a gap therebetween; and an optional third support member at the second end. Each device further comprises a peripheral band that extends around the first, second, and optionally the third support members and is substantially unsupported in the gap between the first and second support members. The apparatus additionally comprises a mounting plate having a central aperture, and two or more of the devices mounted on the mounting plate such that the first end of each device is arranged bearing against a pipe extending through the central aperture. A method of manufacturing reinforced pipe is also provided.
Systems and Methods for Forming a Fishing Rod
A method embodiment for forming the fishing rod can include forming a tube comprising a carbon sheet. The tube can be formed by rolling the carbon sheet around a rod template. The formed tube can comprise a proximal region and a distal region. The method can further comprise coupling an assembly. The assembly can comprise the tube and a reel seat. During coupling of the assembly, the reel seat can encompass a distal region of the tube. The assembly can be molded for structural integrity by applying heat to the assembly and allowing the assembly to cure.
Composite structures constructed of wound tubular braiding
A system for constructing a composite structure includes a braiding machine, a winding tool and a forming machine. The composite structure is constructed of a wound tubular braiding. The wound tubular braiding is constructed of a biaxial or triaxial tubular braid of unidirectional tape.
Method and device for manufacturing a pipe shell from an insulating material
The invention relates to a method and a device for manufacturing a pipe shell from an insulating material by means of which the cycle times can be further reduced while the quality of the pipe shell is simultaneously improved, by at least one web (29) of the insulating material which is provided with a binding agent being wound around a core (19) by means of at least two opposing belts (12, 13) which wrap around the core (19) partially. The method steps are characterized in that the at least one wound-up web (32) of insulating material is removed in a radial direction of the core (19) which is, however, not opposite to the direction in which the at least one web (29) of insulating material was fed by the one belt (12), especially by the wound-up web (32) being discharged through the same belt (12).
PRESSURE-RESISTANT CONTAINER
A can to contain a liquid and/or a gas is closed with a bottom element and a cover element. The innermost layer is a straight-wound barrier layer having a folded seam extending in a longitudinal direction. The barrier layer includes an inner diffusion-tight layer and an outer kraft paper layer. At least two further straight-wound layers made of paper or cardboard are around the barrier layer of the can shell. Adjoining cardboard or paper surfaces of the barrier layer and a next wound layer are adhered directly to each other. Each of the two further wound layers is longitudinally wound and include in the longitudinal direction an overlapping region with itself. The overlapping region of the next wound layer adjoining the barrier layer is offset relative to the folded seam of the barrier layer and the overlapping regions of the two further wound layers are located at different peripheral regions.
Hybrid fiber multi-axial prepreg
Multi-ply, hybrid composite materials useful in the formation of thin walled, hollow, tubular articles having improved resistance to hoop stress. Two different, single-ply pre-pregs are impregnated with binders and laminated together with the fibers of the layers oriented at a bias relative to each other. The hybrid composite is rolled into a tubular article having excellent strength uniformity along the full length of the tubular article.