Patents by Inventor David R. Hartman
David R. Hartman 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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Publication number: 20240081987Abstract: Aspects of the disclosure relate to prosthetic valves having a frame, a frame cover, and a leaflet construct. Some aspects are directed to a diametric taper for the prosthetic valve for achieving enhanced performance of the prosthetic valve under operational conditions, enhanced compressibility and delivery characteristics, and other additional or alternative advantages. Other aspects are directed toward unique assembly and attachment methods for securing leaflet constructs to support structures. Other aspects are directed toward features for interacting with transcatheter delivery systems. Still other aspects are directed to such apparatuses, systems, and methods for valve replacement, such as cardiac valve replacement.Type: ApplicationFiled: November 16, 2023Publication date: March 14, 2024Inventors: David J. Arcaro, Kevin J. Derryberry, Dustin V. Dienno, Edwin W. Field, Bill R. Finney, Joshua C. Haarer, Logan R. Hagaman, Cody L. Hartman, Russell L. Jacoby, Roy Manygoats, JR., Stephen M. Probert, Benjamin A. Smith, Andrew P. Hilton, Olga Baykova, Jason T. Alger
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Publication number: 20210371344Abstract: A ceramic article formed from a plurality of materials, the ceramic article being characterized by the addition of glass fibers having a certain length, diameter and aspect ratio and a method for forming a ceramic article.Type: ApplicationFiled: October 7, 2019Publication date: December 2, 2021Inventor: David R. Hartman
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Publication number: 20210017766Abstract: A fiber-reinforced plastic (FRP) rebar for reinforcing concrete, as well as systems for and methods of making the FRP rebar, are disclosed.Type: ApplicationFiled: April 23, 2019Publication date: January 21, 2021Inventors: David R. Hartman, Kevin Spoo
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Publication number: 20200115846Abstract: A stiffened reinforcement fiber is provided that includes a surface treatment disposed thereon. The surface treatment comprises at least one film former. The stiffened reinforcement fiber has a stiffness that is at least 50% higher than an otherwise identical reinforcement fiber that has not been surface treated.Type: ApplicationFiled: April 5, 2018Publication date: April 16, 2020Inventors: David R. Hartman, David L. Molnar, Christian Espinoza Santos, Daryl Wernette, Michael Bechtel, Julia Faeth
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Publication number: 20170305075Abstract: A hybrid sheet molding compound material is provided that includes at least one hybrid assembled roving comprising a plurality of reinforcement fiber strands (12) and a plurality of carbon fibers (14) comingled with the reinforcement fibers (12). The carbon fibers (14) are coated with a compatibilizer. The hybrid sheet molding compound material further includes a polymer resin material.Type: ApplicationFiled: October 8, 2015Publication date: October 26, 2017Applicant: OCV Intellectual Capital, LLCInventor: David R. Hartman
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Publication number: 20170306633Abstract: Reinforced tiles, as well as systems and methods for reinforcing tiles, are provided. The reinforced tiles have enhanced durability, compressive strength, shear strength, and modulus of elasticity.Type: ApplicationFiled: October 6, 2015Publication date: October 26, 2017Inventor: David R. Hartman
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Publication number: 20170297274Abstract: A hybrid reinforcement material (18) is disclosed that includes a plurality of reinforcement fibers (12) and a plurality of carbon fibers (14) comingled with the reinforcement fibers (12). The reinforcement fibers (12) are selected from natural fibers, organic fibers, and inorganic fibers and form a single hybrid assembled roving with the carbon fibers (14). The carbon fibers (14) are post-coated with a compatibilizer. The hybrid assembled roving (18) may be formed using a hybrid of glass and carbon fibers.Type: ApplicationFiled: October 8, 2015Publication date: October 19, 2017Inventor: David R. Hartman
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Publication number: 20170291375Abstract: A hybrid reinforcement material (18) is disclosed that includes a plurality of reinforcement fibers (12) and a plurality of carbon fibers (14) comingled with the reinforcement fibers (12). The reinforcement fibers (12) are selected from natural fibers, organic fibers, and inorganic fibers and form a single hybrid assembled roving with the carbon fibers (14). The carbon fibers (14) are post-coated with a compatibilizer. The hybrid assembled roving (18) may be formed using a hybrid of glass and carbon fibers.Type: ApplicationFiled: October 8, 2015Publication date: October 12, 2017Inventor: David R. HARTMAN
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Patent number: 8129018Abstract: A sizing composition containing an epoxy film former, a urethane film former, a silane package that includes an aminosilane coupling agent and an epoxy silane coupling agent, a cationic lubricant, a non-ionic lubricant, an antistatic agent, and at least one acid is provided. The epoxy resin emulsion includes a low molecular weight liquid epoxy resin and one or more surfactants. The epoxy resin preferably has an epoxy equivalent weight from 185-192. The sizing composition may optionally contain a methacryloxy silane. The sizing composition may be used to size glass fibers used in filament winding applications to form reinforced composite articles with improved mechanical properties, wet tensile properties, improved resistance to cracking, and improved processing characteristics.Type: GrantFiled: February 27, 2006Date of Patent: March 6, 2012Assignee: OCV Intellectual Capital, LLCInventors: David R. Hartman, Luc M. Peters, Jeffrey L. Antle
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Patent number: 8039058Abstract: A gypsum or foam facer is formed by the direct in-line or off-line coating of a pre-impregnated, fibrous network matting with a secondary binder system. The pre-impregnated fibrous network is preferably formed of a randomly oriented wet use chop strand fiber material impregnated with a modified urea-formaldehyde binder system. The secondary binder system preferably consists of low glass transition acrylic or styrene-butadiene-rubber resin filled predominantly with fillers combined with a plate like reinforcement or fibrous reinforcement. In an alternative embodiment, a low basis secondary veil is layered onto the fibrous network matting with or without the secondary binder system to improve softness and decorative appearance of the formed gypsum board. In another preferred alternative embodiment, a plurality of high aspect ratio particles may be introduced to the binder prior to introduction of an optional secondary binder resin to also improve the softness and decorative appearance of gypsum board.Type: GrantFiled: August 19, 2008Date of Patent: October 18, 2011Inventors: Dale A. Grove, David R. Hartman
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Patent number: 7628596Abstract: A power steering pump for an automotive vehicle including a housing defining a compartment, a cam plate disposed within the housing, a rotor disposed within the housing and a lower pressure plate disposed within the housing between the cam plate and a closed end of the housing. A cover sealingly engages the housing to close an open end of the housing. The cover includes under vane porting to provide a fluid path from an outlet port on the cover to the rotor.Type: GrantFiled: September 22, 2006Date of Patent: December 8, 2009Assignee: Ford Global Technologies, LLCInventors: Timothy Matthew Staton, Brian Stanley Modrzejewski, David R. Hartman, Brandon William Bailey, Michael Dean Strickler
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Patent number: 7594975Abstract: A recyclable tufted carpet meeting EPA recyclable content standards and having improved dimensional stability that reduces skew, bow, and wrinkles during manufacture and installation is formed by combining prior art primary and secondary backings into a single, fiber-reinforced primary backing layer. Consolidating either a glass fiber fabric layer, a glass veil, or a glass mat with a fiber-reinforced extruded film forms the fiber-reinforced primary backing layer. An additional glass fabric fiber layer can also be introduced to the primary backing to provide additional dimensional stability.Type: GrantFiled: December 4, 2006Date of Patent: September 29, 2009Assignee: OCV Intellectual Capital, LLCInventor: David R. Hartman
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Publication number: 20090202716Abstract: A gypsum or foam facer is formed by the direct in-line or off-line coating of a pre-impregnated, fibrous network matting with a secondary binder system. The pre-impregnated fibrous network is preferably formed of a randomly oriented wet use chop strand fiber material impregnated with a modified urea-formaldehyde binder system. The secondary binder system preferably consists of low glass transition acrylic or styrene-butadiene-rubber resin filled predominantly with fillers combined with a plate like reinforcement or fibrous reinforcement. In an alternative embodiment, a low basis secondary veil is layered onto the fibrous network matting with or without the secondary binder system to improve softness and decorative appearance of the formed gypsum board. In another preferred alternative embodiment, a plurality of high aspect ratio particles may be introduced to the binder prior to introduction of an optional secondary binder resin to also improve the softness and decorative appearance of gypsum board.Type: ApplicationFiled: August 19, 2008Publication date: August 13, 2009Inventors: Dale A. Grove, David R. Hartman
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Publication number: 20090117275Abstract: Methods that apply decorative particles in-line in the manufacturing process to form a decorative structured mat or veil that is ready for direct commercial application. The decorative particles or decorative paint patterns should be of a size and/or color to be visible at a distance of five meters from the decorative mat or veil. In preferred embodiments, the particle size ranges from about 100 to about 500 microns in size. A formulation for coating a glass fiber mat with decorative particles is also provided.Type: ApplicationFiled: October 2, 2007Publication date: May 7, 2009Inventors: Dale A. Grove, III, Fredericus Schreuder, Paul A. Geel, David R. Hartman
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Publication number: 20080314517Abstract: A compatibilized polyolefin/polyolefin composite material includes a polyolefin/polyolefin composite substrate and a reinforcing mat formed from reinforcing fibers and a thermoplastic polymer powder. The mat may also incorporate an optional emulsion polymer binder. In addition the compatibilized polyolefin/polyolefin composite material may incorporate an additional film layer so that the mat is sandwiched between the substrate and the film layer. A method of producing such materials from a to polyolefin/polyolefin composite substrate that is topologically/mechanically bonded to a reinforcing mat formed from reinforcing fibers and thermoplastic polymer powder is also described.Type: ApplicationFiled: July 9, 2008Publication date: December 25, 2008Inventors: Dale A. Grove, David R. Hartman, Brian W. Bland
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Patent number: 7429544Abstract: A gypsum or foam facer is formed by the direct in-line or off-line coating of a pre-impregnated, fibrous network matting with a secondary binder system. The pre-impregnated fibrous network is preferably formed of a randomly oriented wet use chop strand fiber material impregnated with a modified urea-formaldehyde binder system. The secondary binder system preferably consists of low glass transition acrylic or styrene-butadiene-rubber resin filled predominantly with fillers combined with a plate like reinforcement or fibrous reinforcement. In an alternative embodiment, a low basis secondary veil is layered onto the fibrous network matting with or without the secondary binder system to improve softness and decorative appearance of the formed gypsum board. In another preferred alternative embodiment, a plurality of high aspect ratio particles may be introduced to the binder prior to introduction of an optional secondary binder resin to also improve the softness and decorative appearance of gypsum board.Type: GrantFiled: April 16, 2004Date of Patent: September 30, 2008Assignee: Owens Corning Intellectual Capital, LLCInventors: Dale A. Grove, David R. Hartman
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Publication number: 20080206551Abstract: An infusion fabric includes a mat selected from a group consisting of continuous filament mat, direct chopped mat, direct continuous mat and combinations thereof and a woven roving or bonded reinforcement layer. The mat and woven roving reinforcement layer are stitched together. The continuous filament mat includes E-glass and/or ECR-glass fibers, a binder and a size.Type: ApplicationFiled: February 11, 2008Publication date: August 28, 2008Inventors: David R. Hartman, Matthew W. Dunn
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Patent number: 7358202Abstract: An infusion fabric includes a mat selected from a group consisting of continuous filament mat, direct chopped mat, direct continuous mat and combinations thereof and a woven roving or bonded reinforcement layer. The mat and woven roving reinforcement layer are stitched together. The continuous filament mat includes E-glass and/or ECR-glass fibers, a binder and a size.Type: GrantFiled: October 22, 2004Date of Patent: April 15, 2008Assignee: OCV Intellectual Capital, LLCInventors: David R. Hartman, Matthew W. Dunn
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Publication number: 20080085650Abstract: A reinforcement fabric includes a first layer of collimated continuous fibers, a second layer selected from a group consisting of veil, continuous filament mat, chopped strand mat, direct chopped mat, direct continuous mat, collimated continuous fibers, woven fabric, non-woven fabric, scrim and combinations thereof as well as a surface adhesive that adheres the first and second layers together. The surface adhesive is selected from a group consisting of hot melt adhesive and web bonded adhesive. The surface adhesive has a melt flow index range of about 5 to about 500 at room temperature and about 900 to about 1300 at application temperature. A method is also provided for the production of the reinforcement fabric.Type: ApplicationFiled: October 5, 2006Publication date: April 10, 2008Inventor: David R. Hartman
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Publication number: 20080075615Abstract: A power steering pump for an automotive vehicle including a housing defining a compartment, a cam plate disposed within the housing, a rotor disposed within the housing and a lower pressure plate disposed within the housing between the cam plate and a closed end of the housing. A cover sealingly engages the housing to close an open end of the housing. The cover includes under vane porting to provide a fluid path from an outlet port on the cover to the rotor.Type: ApplicationFiled: September 22, 2006Publication date: March 27, 2008Inventors: Timothy Matthew Staton, Brian Stanley Modrzejewski, David R. Hartman, Brandon William Bailey, Michael Dean Strickler