Patents Assigned to Cornerstone Research Group, Inc.
-
Patent number: 10167379Abstract: Embodiments of a hybrid fiber layup used to form a fiber-reinforced polymeric composite, and a fiber-reinforced polymeric composite produced therefrom are disclosed. The hybrid fiber layup comprises one or more dry fiber strips and one or more prepreg fiber strips arranged side by side within each layer, wherein the prepreg fiber strips comprise fiber material impregnated with polymer resin and the dry fiber strips comprise fiber material without impregnated polymer resin.Type: GrantFiled: January 18, 2018Date of Patent: January 1, 2019Assignee: Cornerstone Research Group, Inc.Inventors: Thomas J. Barnell, Sean P. Garrigan, Michael D. Rauscher, Benjamin A. Dietsch, Gary N. Cupp
-
Patent number: 10119238Abstract: Embodiments of the present disclosure are directed to reinforced syntactic structures and methods of forming the same to encase an underlying structural substrate for remediation and/or improve structural stability. The reinforced syntactic structure includes an underlying structural substrate having an outer surface and at least one reinforcement shell. The reinforcement shell is formed from at least one syntactic foam shell layer encasing at least a portion of the outer surface of the underlying structural substrate and at least one rigid noncorrosive stiffening skin coupled to the syntactic foam shell layer. The syntactic foam shell layer includes at least two opposing subshells wrapped around the underlying structural substrate and the rigid noncorrosive stiffening skin includes at least two opposing skin sections attached to the at least two opposing subshells respectively. The syntactic foam shell layer is formed from syntactic foam which includes hollow microspheres disposed within a resin matrix.Type: GrantFiled: July 7, 2015Date of Patent: November 6, 2018Assignee: Cornerstone Research Group, Inc.Inventors: Bradley M. Doudican, Mitchell D. Bauer
-
Patent number: 9908993Abstract: Embodiments of a hybrid fiber layup used to form a fiber-reinforced polymeric composite, and a fiber-reinforced polymeric composite produced therefrom are disclosed. The hybrid fiber layup comprises one or more dry fiber strips and one or more prepreg fiber strips arranged side by side within each layer, wherein the prepreg fiber strips comprise fiber material impregnated with polymer resin and the dry fiber strips comprise fiber material without impregnated polymer resin.Type: GrantFiled: October 6, 2015Date of Patent: March 6, 2018Assignee: Cornerstone Research Group, Inc.Inventors: Thomas J. Barnell, Sean P. Garrigan, Michael D. Rauscher, Benjamin A. Dietsch, Gary N. Cupp
-
Patent number: 9820164Abstract: A subterranean system including a tunnel network, a plurality of syntactic foam panels, and a wireless communications network is disclosed. The wireless communications network comprises a plurality of wireless transceivers positioned throughout the tunnel network. The wireless communication range defined by communicatively coupled transceivers is a function of signal strength attenuation in a wireless signal traveling between the communicatively coupled transceivers. The tunnel network comprises tunnel support structure that contributes to the signal strength attenuation and a plurality of support apertures formed in the tunnel support structure. The syntactic foam panels are secured to the tunnel support structure to cover at least some of the support apertures and the composition and configuration of the syntactic foam panels are such that the panels do not make a significant contribution to the signal strength attenuation between communicatively coupled transceivers.Type: GrantFiled: July 24, 2015Date of Patent: November 14, 2017Assignee: CORNERSTONE RESEARCH GROUP, INC.Inventors: Bradley M. Doudican, Patrick J. Hood
-
Patent number: 9622924Abstract: Embodiments of a fluid absorption and distribution enhancement (FADE) product comprises at least one flow media layer, and at least one superabsorbent polymer layer.Type: GrantFiled: December 10, 2015Date of Patent: April 18, 2017Assignee: Cornerstone Research Group, Inc.Inventors: Matthew B. Sunday, Joseph H. Althaus, Brian E. Henslee, Benjamin C. MacMurray
-
Patent number: 9446994Abstract: A composite having a substrate and a plurality of core-shell nanoparticles. The substrate has microporosity, nanoporosity, or free volume and is a polymer matrix, a metal-organic framework, a micro-porous structure, or a nano-porous structure. The plurality of core-shell nanoparticles each has a core and at least one shell layer. The core is made from a decomposed product of a first precursor disposed in the microporosity, nanoporosity, or free volume of the substrate. The at least one shell layer is made from a decomposed product of a second precursor and is disposed on the core.Type: GrantFiled: December 4, 2015Date of Patent: September 20, 2016Assignee: Cornerstone Research Group, Inc.Inventors: Michael D. Rauscher, Emily A. Frake, Michael J. Fisher, Brian E. Henslee
-
Patent number: 9260640Abstract: Embodiments of a reversible thermoset adhesive formed by incorporating thermally-reversible cross-linking units and a method for making the reversible thermoset adhesive are provided. One approach to formulating reversible thermoset adhesives includes incorporating dienes, such as furans, and dienophiles, such as maleimides, into a polymer network as reversible covalent cross-links using Diels Alder cross-link formation between the diene and dienophile. The chemical components may be selected based on their compatibility with adhesive chemistry as well as their ability to undergo controlled, reversible cross-linking chemistry.Type: GrantFiled: August 22, 2013Date of Patent: February 16, 2016Assignee: Cornerstone Research Group, Inc.Inventors: Benjamin C. Mac Murray, Tat H. Tong, Richard D. Hreha
-
Patent number: 9237976Abstract: Embodiments of a fluid absorption and distribution enhancement (FADE) product comprises at least one flow media layer, and at least one superabsorbent polymer layer.Type: GrantFiled: March 15, 2013Date of Patent: January 19, 2016Assignee: Cornerstone Research Group, Inc.Inventors: Matthew B. Sunday, Joseph H. Althaus, Brian E. Henslee, Benjamin C. MacMurray
-
Patent number: 9233883Abstract: A composite having a substrate and a plurality of core-shell nanoparticles. The substrate has microporosity, nanoporosity, or free volume and is a polymer matrix, a metal-organic framework, a micro-porous structure, or a nano-porous structure. The plurality of core-shell nanoparticles each has a core and at least one shell layer. The core is made from a decomposed product of a first precursor disposed in the microporosity, nanoporosity, or free volume of the substrate. The at least one shell layer is made from a decomposed product of a second precursor and is disposed on the core.Type: GrantFiled: February 25, 2014Date of Patent: January 12, 2016Assignee: Cornerstone Research Group, Inc.Inventors: Michael D. Rauscher, Emily A. Frake, Michael J. Fisher, Brian E. Henslee
-
Patent number: 9180632Abstract: An advanced reflexive structure system is disclosed. The reflexive system mimics the pain withdrawal reflex on which the human body relies. The reflexive system incorporates a continuous health and performance monitoring system via an embedded dielectric film, an adaptive composite structure based on shape memory composite material, and an intelligence system which will be interfaced with both the health/performance sensors and the adaptive structure. When activated shape memory polymer will recover its structural integrity via shape recovery and a reptation healing process. These features enable the use of SMP as an adaptive structure in the proposed reflexive system. The development of a reflexive system for structures will enable increased safety and security and demonstrate a better understanding of integrated performance systems.Type: GrantFiled: March 5, 2014Date of Patent: November 10, 2015Assignee: Cornerstone Research Group, Inc.Inventors: Christopher Douglas Hemmelgarn, Thomas Wood Margraf, David Ernest Havens, John Lewis Reed, Logan Wayne Snyder, Anthony Louderbough, Benjamin Allen Dietsch
-
Patent number: 9033283Abstract: Embodiments of an aerodynamic structural insert frame comprise a leading edge, a trailing edge opposite the leading edge, and at least one cavity between the leading edge and trailing edge, wherein the aerodynamic structural insert frame is configured to deflect upon activation by an external stimulus; at least one deformable buckling member extending the distance between opposite edges of the cavity, wherein the deflection of the aerodynamic structural insert frame is configured to trigger deflection of the deformable buckling member; a pivot region; and at least one stopper bar attached to and extending from one edge of the cavity a distance less than the distance between opposite edges of the cavity, wherein the stopper bar is configured to stop the deflection of the aerodynamic structural insert and the buckling member when the stopper bar strikes an opposite edge of the cavity.Type: GrantFiled: March 13, 2013Date of Patent: May 19, 2015Assignee: Cornerstone Research Group, Inc.Inventors: Christopher Douglas Hemmelgarn, Bryan Michael Pelley
-
Patent number: 9017038Abstract: The design of a high efficiency, variable performance vaneaxial fan, requires the utilization of typical fan and single stage compressor design methodologies. To be able to replace multiple fans, the variable vaneaxial fan design must be capable of operation at several different flow rates and total pressures. These operation points can be met by varying motor revolutions per minute (RPM) or geometric parameters such as the hub diameter, tip diameter, as well as blade geometry including number of blades, pitch, spacing, and length. An ideal design with variable performance can replace a family of current fan designs by providing the capability for efficient operation over a range of flow rates and total pressures. This level of variability would not only allow the fan to respond to changing environmental conditions but also to be fit into systems with different characteristics.Type: GrantFiled: June 9, 2010Date of Patent: April 28, 2015Assignee: Cornerstone Research Group, Inc.Inventors: Bryan M. Pelley, Chris D. Hemmelgarn, Joseph H. Althaus, Jennifer M. Fries
-
Patent number: 8915329Abstract: Tunable perforate acoustic liners are disclosed using shape memory materials, which allow the acoustic liners to tune for multiple frequencies across a wide range, unlike current designs which are limited to specific frequencies or small ranges. The liner will be initiated through a sensor and feedback loop to monitor the current acoustic environment and initiate geometry change needed to more effectively attenuate engine noise.Type: GrantFiled: February 19, 2013Date of Patent: December 23, 2014Assignee: Cornerstone Research Group, Inc.Inventors: Jason Michael Hermiller, Michael Maddux
-
Patent number: 8808479Abstract: A method of repairing a composite component having a damaged area including: laying a composite patch over the damaged area; activating the shape memory polymer resin to easily and quickly mold said patch to said damaged area; deactivating said shape memory polymer so that said composite patch retains the molded shape; and bonding said composite patch to said damaged part.Type: GrantFiled: July 15, 2011Date of Patent: August 19, 2014Assignee: Cornerstone Research Group, Inc.Inventor: Patrick J. Hood
-
Publication number: 20140208516Abstract: Embodiments of a fluid absorption and distribution enhancement (FADE) product comprises at least one flow media layer, and at least one superabsorbent polymer layer.Type: ApplicationFiled: March 15, 2013Publication date: July 31, 2014Applicant: CORNERSTONE RESEARCH GROUP, INC.Inventors: Matthew B. Sunday, Joseph H. Althaus, Brian E. Henslee, Benjamin C. Mac Murray
-
Publication number: 20140186476Abstract: An advanced reflexive structure system is disclosed. The reflexive system mimics the pain withdrawal reflex on which the human body relies. The reflexive system incorporates a continuous health and performance monitoring system via an embedded dielectric film, an adaptive composite structure based on shape memory composite material, and an intelligence system which will be interfaced with both the health/performance sensors and the adaptive structure. When activated shape memory polymer will recover its structural integrity via shape recovery and a reptation healing process. These features enable the use of SMP as an adaptive structure in the proposed reflexive system. The development of a reflexive system for structures will enable increased safety and security and demonstrate a better understanding of integrated performance systems.Type: ApplicationFiled: March 5, 2014Publication date: July 3, 2014Applicant: Cornerstone Research Group, Inc.Inventors: Christopher Douglas Hemmelgarn, Thomas Wood Margraf, David Ernest Havens, John Lewis Reed, Logan Wayne Snyder, Anthony Louderbaugh, Benjamin Allen Dietsch
-
Patent number: 8754179Abstract: The present discovery uses monomers which contain reversible photo-crosslinkable groups in addition to primary polymerizable groups. The mechanical properties of these materials and the reversibility of the photo-activated shape memory effect demonstrate the effectiveness of using photo-irradiation to effect change in modulus and shape memory effect. In the preferred embodiment the reaction mixture includes a photo-reactive monomer comprising a photo reactive group and a polymerizable group; a second monomer, which is more preferably a mixture of monomers, which are acrylate based; a multi-functional crosslinking agent, preferably 1,6 hexanediol diacrylate (HDODA); an initiator, preferably a free radical initiator; and a fifth, optional, component which is a modifying polymer. The mixture of the second monomer, crosslinking agent, and initiator comprise the base polymer matrix into which the photo-reactive monomer is incorporated.Type: GrantFiled: October 6, 2005Date of Patent: June 17, 2014Assignee: Cornerstone Research Group, Inc.Inventors: Tat Hung Tong, Emily Snyder
-
Patent number: 8721822Abstract: A method of repairing a composite component having a damaged area including: laying a composite patch over the damaged area; activating the shape memory polymer resin to easily and quickly mold said patch to said damaged area; deactivating said shape memory polymer so that said composite patch retains the molded shape; and bonding said composite patch to said damaged part.Type: GrantFiled: July 15, 2011Date of Patent: May 13, 2014Assignee: Cornerstone Research Group, Inc.Inventor: Patrick J. Hood
-
Patent number: 8720722Abstract: The presently disclosed device provides a method and means for ensuring that containers of all types and sizes are vented or purged to atmospheric or environmental conditions upon the interior or exterior of the container reaching a critical temperature pressure, or humidity. Specifically, the presently disclosed invention integrates shape memory polymer (SMP) based, thermally activated fasteners into the venting systems. The result is a venting system that increases munitions safety without compromising the venting effectiveness, structural integrity, or the required bullet/fragment impact resistance requirements of the system.Type: GrantFiled: September 23, 2010Date of Patent: May 13, 2014Assignee: Cornerstone Research Group, Inc.Inventors: Matthew Brian Sunday, Michael Jeffrey Fisher
-
Patent number: 8710166Abstract: The present discovery shows how to make a self-crosslinking SMP. Shape Memory Polymer (SMP) can be formulated as a castable coating. This process allows the polymer to dissolve in solvent, and as the solvent evaporates the polymers self-crosslink at room temperature in air, creating a copolymer coating wherein the copolymer coating is an SMP. This technology has coating applications where shape memory would be an asset: from shape memory textile and fabric to self-healing coatings for vehicles and morphing skins for aircraft.Type: GrantFiled: May 28, 2009Date of Patent: April 29, 2014Assignee: Cornerstone Research Group, Inc.Inventor: Tat Hung Tong