Patents by Inventor Dimitrije Milovich
Dimitrije Milovich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9701048Abstract: Reusable cartridges allow the time consuming resin preparation and processing steps to occur offline and not affect the cycling time of the injector. Cartridges also greatly simplify the operation of RTM injectors as preparation simply consists of loading a warmed ready-to-use resin cartridge and performing the injection.Type: GrantFiled: July 6, 2016Date of Patent: July 11, 2017Inventors: Matt Howe, Dimitrije Milovich
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Publication number: 20170021539Abstract: Reusable cartridges allow the time consuming resin preparation and processing steps to occur offline and not affect the cycling time of the injector. Cartridges also greatly simplify the operation of RTM injectors as preparation simply consists of loading a warmed ready-to-use resin cartridge and performing the injection.Type: ApplicationFiled: July 6, 2016Publication date: January 26, 2017Inventors: Matt Howe, Dimitrije Milovich
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Patent number: 9505153Abstract: Reusable cartridges allow the time consuming resin preparation and processing steps to occur offline and not affect the cycling time of the injector. Cartridges also greatly simplify the operation of RTM injectors as preparation simply consists of loading a warmed ready-to-use resin cartridge and performing the injection.Type: GrantFiled: February 13, 2013Date of Patent: November 29, 2016Assignee: Radius Engineering, Inc.Inventors: Matt Howe, Dimitrije Milovich
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Publication number: 20140117571Abstract: Reusable cartridges allow the time consuming resin preparation and processing steps to occur offline and not affect the cycling time of the injector. Cartridges also greatly simplify the operation of RTM injectors as preparation simply consists of loading a warmed ready-to-use resin cartridge and performing the injection.Type: ApplicationFiled: February 13, 2013Publication date: May 1, 2014Applicant: RADIUS ENGINEERING INC.Inventors: Matt Howe, Dimitrije Milovich
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Patent number: 6824636Abstract: A 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.Type: GrantFiled: July 19, 2002Date of Patent: November 30, 2004Assignee: Radius Engineering, Inc.Inventors: Ronald H. Nelson, Dimitrije Milovich, Paul Nordstrom Clark, Gregory Joseph Loughry
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Publication number: 20020190439Abstract: Disclosed is a method for manufacture of a hollow complex three-dimensional fiber golf club head having at least one hole. The method involves shaping a fluid-removable core in the general form of the golf club head, placing a flexible pressurizable 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 pressurizing the bladder while the assembly of core, bladder, and impregnated fiber is in a female mold to force the plies against the inner surfaces of the mold, such that compaction of the fiber against the inner surfaces of the mold is from the pressurization of the bladder and not from the core, and heating to cure the resin, removing the bladder and the fluid-removable core from the interior of the cured part by first disintegrating and removing the fluid-removable core with a fluid sufficient to allow removal of the bladder.Type: ApplicationFiled: July 19, 2002Publication date: December 19, 2002Inventors: Ronald H. Nelson, Dimitrije Milovich, Paul Nordstrom Clark, Gregory Joseph Loughry
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Patent number: 6458306Abstract: Bicycle 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.Type: GrantFiled: June 15, 1999Date of Patent: October 1, 2002Assignee: Radius Engineering, Inc.Inventors: Ronald H. Nelson, Dimitrije Milovich, Paul Nordstrom Clark, Gregory Joseph Loughry
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Patent number: 6361840Abstract: A 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.Type: GrantFiled: June 15, 1999Date of Patent: March 26, 2002Inventors: Ronald H. Nelson, Dimitrije Milovich
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Patent number: 6340509Abstract: Bicycle 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.Type: GrantFiled: May 29, 1997Date of Patent: January 22, 2002Assignee: Radius Engineering, Inc.Inventors: Ronald H. Nelson, Dimitrije Milovich, Paul Nordstrom Clark, Gregory Joseph Loughry
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Patent number: 6319346Abstract: A 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.Type: GrantFiled: December 24, 1999Date of Patent: November 20, 2001Assignee: Radius Engineering, Inc.Inventors: Paul Clark, Jonathan Garhart, Dimitrije Milovich, Ronald Nelson
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Patent number: 6270104Abstract: The bicycle frame of the invention is formed by selecting and adhesively joining previously formed and precured composite tubes to previously formed and precured composite lug components.Type: GrantFiled: October 8, 1993Date of Patent: August 7, 2001Assignee: Trek Bicycle CorporationInventors: Ronald H. Nelson, Dimitrije Milovich, Weston M. Wilcox, Robert F. Read
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Publication number: 20010008659Abstract: A 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.Type: ApplicationFiled: June 15, 1999Publication date: July 19, 2001Inventors: RONALD H. NELSON, DIMITRIJE MILOVICH
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Patent number: 6248024Abstract: A 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.Type: GrantFiled: November 16, 1999Date of Patent: June 19, 2001Assignee: Radius Engineering, Inc.Inventors: Ronald H. Nelson, Dimitrije Milovich, Paul Nordstrom Clark, Gregory Joseph Loughry
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Patent number: 6143236Abstract: A 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.Type: GrantFiled: April 9, 1996Date of Patent: November 7, 2000Assignee: Radius Engineering, Inc.Inventors: Ronald H. Nelson, Dimitrije Milovich
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Patent number: 5985197Abstract: A 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.Type: GrantFiled: April 23, 1997Date of Patent: November 16, 1999Assignee: Radius Engineering, Inc.Inventors: Ronald H. Nelson, Dimitrije Milovich, Paul Nordstrom Clark, Gregory Joseph Loughry
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Patent number: 5624519Abstract: The 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.Type: GrantFiled: February 7, 1994Date of Patent: April 29, 1997Assignee: Trek Bicycle, Corp.Inventors: Ronald H. Nelson, Dimitrije Milovich, Weston M. Wilcox, Robert F. Read
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Composite pole manufacturing process for varying non-circular cross-sections and curved center lines
Patent number: 5534203Abstract: A 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.Type: GrantFiled: February 9, 1994Date of Patent: July 9, 1996Assignee: Radius Engineering, Inc.Inventors: Ronald H. Nelson, Dimitrije Milovich -
Patent number: 5505492Abstract: A 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.Type: GrantFiled: December 20, 1994Date of Patent: April 9, 1996Assignee: Radius Engineering, Inc.Inventors: Ronald H. Nelson, Dimitrije Milovich
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Patent number: 5073589Abstract: The 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.degree. F. to 750.degree. F., and will exhibit good thermal conductivity and dimensional stability.Type: GrantFiled: December 21, 1989Date of Patent: December 17, 1991Inventors: Dimitrije Milovich, Ronald H. Nelson