Ron H. Nelson Patents



Ron H Nelson Patents#US Patent No. & Hyperlink to PDFTitle & Hyperlink to Google PatentsAbstractInventorsIssue Date15,073,589Composite Backing Structure for Spray metal ToolingThe present invention is in a material for forming a backing for a thin metal shell of a metal-faced composite tool that is for use in manufacture of structural components utilizing advanced composites. The backing is a mix of a selected resin for providing support as to tool backing at its operating temperatures and pressures; and a mix of very small, larger low, and large higher aspect fibers that are combined to form a lattice. Which fibers, prior to combining with the resin, are treated for chemical adhesion. The fibers receive a volume of resin mixed therein sufficient to provide a strong bonding to and between the fibers. The cured backing to have a minimum density, exhibit low isotropic shrinkage during fabrication, with a low isotropic expansion at operating from room or atmospheric temperature to temperatures of from 350?° F. to 750?° F., and will exhibit good thermal conductivity and dimensional stability.Milovich, Nelson12/17/199125,505,492 Composite Pole and Manufacturing Process for Composite Poles of Varying Non-Circular Cross- Sections and Curved CenterlinesA composite ski pole is formed of fiber reinforced plastic laminates laid up around an inflatable bladder, and placed in a female mold. The bladder inflates to compact the laminates to substantially eliminate voids and form a smooth, hollow ski pole with a structurally strong and stiff skin. The molds may use compound shapes such as differing cross sections or longitudinal bends.Nelson et al4/9/199635,534,203Composite Pole Manufacturing Process for Varying Non-Circular Cross-Sections and Curved Center lineA composite ski pole is formed of fiber reinforced plastic laminates laid up around an inflatable bladder, and placed in a female mold. The bladder inflates to compact the laminates to substantially eliminate voids and form a smooth, hollow ski pole with a structurally strong and stiff skin. The molds may use compound shapes such as differing cross sections or longitudinal bends.Nelson et al7/9/199645,624,519Method making a composite bicycle frame using composite lugsThe bicycle frame of the invention is formed by selecting and adhesively joining previously formed and precured composite tubes to previously formed and precured composite lugs. The precured lugs are shaped from preforms comprising a plurality of resin impregnated fiber reinforced layers formed into a stacks having the fibers of adjacent layers cross one another, with preforms of each lug component being a set of shaped overlapping segments of the lug to be formed. The overlapping segments are then brought together and placed around an inflatable bladder to form an assemblage that is placed in a female mold, preferably of two halves, that are closed for forming the lug. The resulting assemblage is cured, with the bladder pressurized for urging the respective preforms to the mold shaping surfaces, providing a high laminate compaction during cure for a uniform, thin walled, strong, tubular, lug. The lugs are preferably formed with one or more plugs for closely fitting into adjacent open ends of the tubes. The composite tubes may be formed by a method similar to the lug forming method described, or by wrapping a preform up of a number of reinforced fiber layers, around a mandrel, and subjecting the preforms to an inward compaction pressure during cure. These methods provide a thin walled high strength tube.Nelson et al4/29/199755,692,970Composite golf club shaftA substantially tubular rigid golf club shaft made of a composite of structural fiber laminate in a resin matrix, the shaft comprising a grip portion, a medial portion and a head attachment portion, the grip portion having a upper grip end and a lower grip end and being constructed and configured for a grip to be mounted on said grip portion that covers the exterior surface of the grip portion and extends substantially the entire length of said grip portion from said upper grip end to said lower grip end, the medial portion having a upper medial end adjacent to the lower grip end and extending a lower medial end adjacent to the head attachment portion, the head attachment portion having a upper head attachment end and a lower head attachment end with the upper head attachment end adjacent to the lower medial end, the head attachment portion constructed and configured for a golf club head to be mounted on said head attachment portion, a step transition in the exterior surface of the shaft that abruptly increases the diameter of the shaft between the exposed medial portion and either or both the grip portion and the head attachment portion.Nelson12/2/199765,985,197Method of manufacturing a composite golf club headA process for manufacturing a golf-club head is disclosed comprising; shaping a fluid-removable core in the general form of the club head, placing a flexible inflatable bladder around the core, wrapping over the assembly of core and bladder at least one ply of fiber impregnated with a curable resin, placing the assembly of core, bladder, and impregnated fiber into a female mold, forming a cured part in the form of a golf-club head by inflating the bladder to force the plies against the inner surfaces of the mold and heating the mold to cure the resin, removing the cured part from the mold, disintegrating the fluid-removable core with a fluid sufficient to allow removal of the bladder from the interior of the cured part through a hole in the cured part, removing the bladder through the hole with any residues of the core within the bladder to form a hollow molded club head with a hollow interior essentially free from non-functional materials.Nelson et al11/16/199976,143,236Method for manufacturing composite shafts with injection molded, rigidized bladder with varying wall thicknessA method for manufacturing a composite shaft comprising providing an impregnated fibrous material comprising a fiber impregnated with a hardenable polymeric material, forming an impregnated fiber preform by wrapping the impregnated fiber material around a shaped pressurizable bladder, the bladder having outer dimensions to form a preform dimensioned closely to the final dimensions of the shaft and dimensioned to allow placement of the assembly of the bladder and the impregnated fiber preform into female tooling, placing the assembly of the bladder and the impregnated fiber preform into the female tooling, pressurizing the bladder to press the impregnated fiber against the tooling, and heating the tooling to form a hardened composite of the polymeric material and the fiber while maintaining pressure in the bladder, releasing the pressure in the bladder, and removing the bladder from the interior of the shaft.Nelson et al11/7/200086,248,024Composite golf club headA composite golf-club head is disclosed with at least one complex three-dimensional molded composite part. The part has multiple interleaved plies of reinforcing fiber, and has a wall with an interleave ratio greater than about 30, preferably greater than about 100.Nelson et al6/19/200196,270,104Composite golf club headA composite golf-club head is disclosed with at least one complex three-dimensional molded composite part. The part has multiple interleaved plies of reinforcing fiber, and has a wall with an interleave ratio greater than about 30, preferably greater than about 100.Nelson et al6/19/2001106,319,346Method for manufacture of composite aircraft control surfacesA process for forming an aircraft control surface in the form of a spoiler from a fiber/resin composite is disclosed. The trailing edge is compression molded by applying pressure on the mold. The leading edge is thick walled in the form of a torsion box and is molded by an internal pressurizable bladder.Clark; Garhart; Milovich; Nelson11/20/2001116,340,509Composite bicycle frame and method of construction thereofBicycle frame components without laps made by a method comprising; shaping a fluid-removable core in the general form of the component, placing a flexible inflatable bladder around the core, wrapping over the assembly of core and bladder at least one ply of fiber impregnated with a curable resin, forming a cured part by inflating the bladder while the assembly of core, bladder, and impregnated fiber is in a mold to force the plies against the inner surfaces of the mold, such that compaction of the fiber against the mold is predominantly from the bladder inflation and not from the core, and heating to cure the resin to form a cured part, removing the bladder and the fluid-removable core from the interior of the cured part by disintegrating the fluid-removable core with a fluid sufficient to allow removal of the core and the bladder.Nelson et al1/22/2002126,361,840Injection molded, rigidized bladder with varying wall thickness for manufacturing composite shaftsA pressurizable bladder for the manufacture of a composite shaft manufactured from a flexible elastomeric material and adapted for supporting at least one layer of fiber impregnated with resin has an opening for pressurization of the bladder to compress the impregnated fiber against female tooling while the tooling is heated to cure the resin. The bladder has a wall of variable thickness to permit outer contours of the bladder to conform to inner contours of the female tooling.Nelson et al3/26/2002136,458,306Method for manufacturing composite bicycle frameBicycle frame components without laps made by a method comprising; shaping a fluid-removable core in the general form of the component, placing a flexible inflatable bladder around the core, wrapping over the assembly of core and bladder at least one ply of fiber impregnated with a curable resin, forming a cured part by inflating the bladder while the assembly of core, bladder, and impregnated fiber is in a mold to force the plies against the inner surfaces of the mold, such that compaction of the fiber against the mold is predominantly from the bladder inflation and not from the core, and heating to cure the resin to form a cured part, removing the bladder and the fluid-removable core from the interior of the cured part by disintegrating the fluid-removable core with a fluid sufficient to allow removal of the core and the bladder.Nelson et al10/1/2002146,824,636Method of manufacturing a composite golf club headA method for manufacture of a hollow complex three-dimensional fiber golf club head having at least one hole. A fluid-removable core is shaped in the general form of the golf club head, placed in a flexible pressurizable bladder around the core, at least one ply of fiber impregnated with a curable resin is wrapped over the core and bladder, and a cured part is formed by pressurizing the bladder while the core, bladder, and impregnated fiber is in a female mold to force the plies against the inner surfaces of the mold. After heating to cure the resin, the bladder and the fluid-removable core is removed from the interior of the cured part by disintegrating core with a fluid sufficient to allow removal of the bladder.Nelson et al11/30/20041510,085,858Carbon Fiber Prosthetic Foot with Hollow Cross SectionsA hollow tubulous composite structure and method for prosthetic limbs is described.Nelson10/2/20181611,141,293Carbon fiber prosthetic footA hollow tubulous composite structure and method for prosthetic limbs is described.Nelson10/12/2021 ................
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