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).

  • Publication number: 20240081987
    Abstract: 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: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: 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
  • Publication number: 20210371344
    Abstract: 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: Application
    Filed: October 7, 2019
    Publication date: December 2, 2021
    Inventor: David R. Hartman
  • Publication number: 20210017766
    Abstract: A fiber-reinforced plastic (FRP) rebar for reinforcing concrete, as well as systems for and methods of making the FRP rebar, are disclosed.
    Type: Application
    Filed: April 23, 2019
    Publication date: January 21, 2021
    Inventors: David R. Hartman, Kevin Spoo
  • Publication number: 20200115846
    Abstract: 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: Application
    Filed: April 5, 2018
    Publication date: April 16, 2020
    Inventors: David R. Hartman, David L. Molnar, Christian Espinoza Santos, Daryl Wernette, Michael Bechtel, Julia Faeth
  • Publication number: 20170305075
    Abstract: 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: Application
    Filed: October 8, 2015
    Publication date: October 26, 2017
    Applicant: OCV Intellectual Capital, LLC
    Inventor: David R. Hartman
  • Publication number: 20170306633
    Abstract: 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: Application
    Filed: October 6, 2015
    Publication date: October 26, 2017
    Inventor: David R. Hartman
  • Publication number: 20170297274
    Abstract: 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: Application
    Filed: October 8, 2015
    Publication date: October 19, 2017
    Inventor: David R. Hartman
  • Publication number: 20170291375
    Abstract: 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: Application
    Filed: October 8, 2015
    Publication date: October 12, 2017
    Inventor: David R. HARTMAN
  • Patent number: 8129018
    Abstract: 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: Grant
    Filed: February 27, 2006
    Date of Patent: March 6, 2012
    Assignee: OCV Intellectual Capital, LLC
    Inventors: David R. Hartman, Luc M. Peters, Jeffrey L. Antle
  • Patent number: 8039058
    Abstract: 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: Grant
    Filed: August 19, 2008
    Date of Patent: October 18, 2011
    Inventors: Dale A. Grove, David R. Hartman
  • Patent number: 7628596
    Abstract: 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: Grant
    Filed: September 22, 2006
    Date of Patent: December 8, 2009
    Assignee: Ford Global Technologies, LLC
    Inventors: Timothy Matthew Staton, Brian Stanley Modrzejewski, David R. Hartman, Brandon William Bailey, Michael Dean Strickler
  • Patent number: 7594975
    Abstract: 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: Grant
    Filed: December 4, 2006
    Date of Patent: September 29, 2009
    Assignee: OCV Intellectual Capital, LLC
    Inventor: David R. Hartman
  • Publication number: 20090202716
    Abstract: 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: Application
    Filed: August 19, 2008
    Publication date: August 13, 2009
    Inventors: Dale A. Grove, David R. Hartman
  • Publication number: 20090117275
    Abstract: 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: Application
    Filed: October 2, 2007
    Publication date: May 7, 2009
    Inventors: Dale A. Grove, III, Fredericus Schreuder, Paul A. Geel, David R. Hartman
  • Publication number: 20080314517
    Abstract: 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: Application
    Filed: July 9, 2008
    Publication date: December 25, 2008
    Inventors: Dale A. Grove, David R. Hartman, Brian W. Bland
  • Patent number: 7429544
    Abstract: 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: Grant
    Filed: April 16, 2004
    Date of Patent: September 30, 2008
    Assignee: Owens Corning Intellectual Capital, LLC
    Inventors: Dale A. Grove, David R. Hartman
  • Publication number: 20080206551
    Abstract: 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: Application
    Filed: February 11, 2008
    Publication date: August 28, 2008
    Inventors: David R. Hartman, Matthew W. Dunn
  • Patent number: 7358202
    Abstract: 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: Grant
    Filed: October 22, 2004
    Date of Patent: April 15, 2008
    Assignee: OCV Intellectual Capital, LLC
    Inventors: David R. Hartman, Matthew W. Dunn
  • Publication number: 20080085650
    Abstract: 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: Application
    Filed: October 5, 2006
    Publication date: April 10, 2008
    Inventor: David R. Hartman
  • Publication number: 20080075615
    Abstract: 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: Application
    Filed: September 22, 2006
    Publication date: March 27, 2008
    Inventors: Timothy Matthew Staton, Brian Stanley Modrzejewski, David R. Hartman, Brandon William Bailey, Michael Dean Strickler