Patents by Inventor Douglas M. Hopkins

Douglas M. Hopkins 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).

  • Patent number: 5214892
    Abstract: A molding strip for use in a molding strip assembly supports flexible materials on a surface with insulation provided between the flexible materials and the surface. The molding strip has an elongated base having a backside, a front side and first and second side edges that extend in the direction of elongation of the base. A first gripper wall extends perpendicularly from the front side of the base. A second gripper wall includes a first wall portion that extends from the base at a position on the base spaced from the first gripper wall, a second wall portion extending from the first wall portion toward the first gripper wall so that a space is defined by the base, the first gripper wall, the first wall portion of the second gripper wall and the second wall portion of the second gripper wall, and a third wall portion that extends from the second wall portion parallel to the first gripper wall.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: June 1, 1993
    Inventors: Bryan K. Livingston, Douglas M. Hopkins
  • Patent number: 5117598
    Abstract: Molding strips are provided for use in frame assemblies for supporting and securing fabric or material sheets on substrates such as walls for decorative and acoustic purposes. An outside corner molding strip is provided, as well as molding strips for use as panel edges. Each panel edge molding strip has an elongated base portion having a back side to be disposed against a surface to which the base portion is to be attached. First and second gripper walls extend substantially perpendicularly from the front side of the base portion. These walls define a space therebetween for receiving fabric material therein. The first and second gripper walls have respective confronting portions having a gripping arrangement therebetween. A fabric material is stuffed between the confronting portions and gripped therebetween, the fabric being accumulated in the space between the gripper walls.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: June 2, 1992
    Inventors: Bryan K. Livingston, Douglas M. Hopkins