Patents by Inventor Charles Demarest

Charles Demarest 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).

  • Polyurethane/urea elastomer material for game ball applications
    Patent number: 9862795
    Abstract: Disclosed herein is a composition for use in the preparation of a Lacrosse sport ball, the composition comprising a prepolymer, the prepolymer comprising a multifunctional polyisocyanate and one or more polyols having a molecular weight of from about 1000 Daltons to about 5000 Daltons, and a curative comprising an amine or an additional polyol or a combination thereof. A Lacrosse ball formed from the composition exhibits a ball compression of from about 180 pounds to about 210 pounds or from about 90 pounds to about 210 pounds when tested in accordance with ND 049-12m12 Section 5.3 Ball Compression, and wherein the molded spherical ball exhibits a ball coefficient of restitution COR of from about 0.60 to about 0.70 or from about 0.50 to about 0.75 when tested in accordance with ND 049-12m12 Section 5.4 Ball Coefficient of Restitution COR.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: January 9, 2018
    Assignee: The Hanson Group LLC
    Inventors: Wallace Lee Hanson, Jr., Susan Aragon, Chris Carter, Charles Demarest, Michael Oseth, Marci Ann Seidel
  • POLYURETHANE/UREA ELASTOMER MATERIAL FOR GAME BALL APPLICATIONS
    Publication number: 20150328500
    Abstract: Disclosed herein is a composition for use in the preparation of a Lacrosse sport ball, the composition comprising a prepolymer, the prepolymer comprising a multifunctional polyisocyanate and one or more polyols having a molecular weight of from about 1000 Daltons to about 5000 Daltons, and a curative comprising an amine or an additional polyol or a combination thereof. A Lacrosse ball formed from the composition exhibits a ball compression of from about 180 pounds to about 210 pounds or from about 90 pounds to about 210 pounds when tested in accordance with ND 049-12m12 Section 5.3 Ball Compression, and wherein the molded spherical ball exhibits a ball coefficient of restitution COR of from about 0.60 to about 0.70 or from about 0.50 to about 0.75 when tested in accordance with ND 049-12m12 Section 5.4 Ball Coefficient of Restitution COR.
    Type: Application
    Filed: May 19, 2015
    Publication date: November 19, 2015
    Inventors: Wallace Lee Hanson, JR., Susan Aragon, Chris Carter, Charles Demarest, Michael Oseth, Marci Ann Seidel
  • MONOLITHIC THREE-DIMENSIONAL COMPOSITE AND METHOD OF MAKING SAME
    Publication number: 20130011623
    Abstract: Described herein is a monolithic three-dimensional composite having a three-dimensional layer impregnated with an outer layer of polyurea, polyurethane, or a blend thereof. In one aspect the three-dimensional layer is woven fabric of a plain 4-layer tubular weave. Optionally, the outer layer has a three-dimensional relief to simulate three-dimensional structures.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 10, 2013
    Applicants: Nicolon Corporation d/b/a Tencate Geosynthetics North America, THE HANSON GROUP, LLC
    Inventors: David Michael Jones, Randy Eugene Johnson, Kevin Nelson King, Wallace L. Hanson, JR., Guy J. Stokes, John B. McIntyre, Charles Demarest