Patents by Inventor William G. Davids

William G. Davids 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: 10494779
    Abstract: An elongated girder for use in a bridge includes a girder body having a modified V-shaped cross section. The body includes longitudinally extending webs defining sides of the girder, a bottom flange extending between the webs, and top flanges extending outwardly from the webs.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: December 3, 2019
    Assignee: University of Maine System Board of Trustees
    Inventors: Habib J. Dagher, James M. Anderson, William G. Davids, Joshua D. Clapp
  • Publication number: 20190276994
    Abstract: An elongated girder for use in a bridge includes a girder body having a modified V-shaped cross section. The body includes longitudinally extending webs defining sides of the girder, a bottom flange extending between the webs, and top flanges extending outwardly from the webs.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 12, 2019
    Applicant: University of Maine System Board of Trustees
    Inventors: Habib J. Dagher, James M. Anderson, William G. Davids, Joshua D. Clapp
  • Patent number: 8141313
    Abstract: A roofing system includes a plurality of roofing panel assemblies. Each roofing panel assembly includes a base having a substantially planar surface, a plurality of I-joists having an upper flange and a lower flange, wherein the base is attached to the lower flanges of the plurality of I-joists, and a cap having a substantially planar surface, wherein the cap is attached to the upper flanges of the plurality of I-joists. The plurality of I-joists includes a first edge most I-joist and a second edge most I-joist. A first edge of the cap is attached to the upper flange of the first edge most I-joist such that a portion of the upper flange of the first edge most I-joist is not covered by the cap. A second edge of the cap extends beyond an edge of the second edge most I-joist for a distance less than a width of the upper flange of the second edge most I-joist.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: March 27, 2012
    Inventors: Habib J. Dagher, William G. Davids
  • Patent number: 8046969
    Abstract: A roofing panel assembly is made of a base and a cap as well as a plurality of I-joists having an upper flange, a lower flange and a web. The base is attached to the lower flanges of one or more of the plurality of I-joists and the cap is attached to the upper flanges of one or more of the plurality of I-joists.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: November 1, 2011
    Assignee: University of Maine
    Inventors: Habib J. Dagher, William G. Davids
  • Publication number: 20110072746
    Abstract: A roofing system includes a plurality of roofing panel assemblies. Each roofing panel assembly includes a base having a substantially planar surface, a plurality of I-joists having an upper flange and a lower flange, wherein the base is attached to the lower flanges of the plurality of I-joists, and a cap having a substantially planar surface, wherein the cap is attached to the upper flanges of the plurality of I-joists. The plurality of I-joists includes a first edge most I-joist and a second edge most I-joist. A first edge of the cap is attached to the upper flange of the first edge most I-joist such that a portion of the upper flange of the first edge most I-joist is not covered by the cap. A second edge of the cap extends beyond an edge of the second edge most I-joist for a distance less than a width of the upper flange of the second edge most I-joist.
    Type: Application
    Filed: December 9, 2010
    Publication date: March 31, 2011
    Applicant: UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES
    Inventors: Habib J. Dagher, William G. Davids
  • Publication number: 20090090083
    Abstract: A roofing panel assembly is made of a base and a cap as well as a plurality of I-joists having an upper flange, a lower flange and a web. The base is attached to the lower flanges of one or more of the plurality of I-joists and the cap is attached to the upper flanges of one or more of the plurality of I-joists.
    Type: Application
    Filed: October 6, 2008
    Publication date: April 9, 2009
    Inventors: Habib J. Dagher, William G. Davids
  • Patent number: 6699575
    Abstract: A wood sheathing panel, suitable for use in building construction, includes reinforcement strips of fiber reinforced polymer material incorporated into the panel. The reinforcement strips cover an area that is within the range of from about 5 to about 50 percent of the surface area of the panel. The reinforcement strips of fiber reinforced plastic material can be incorporated in the perimeter of the panel, or can be incorporated into the corners of the panel. The spacing of the intermittently incorporated reinforcement strips can generally coincide with a standard spacing of framing members so that when the wood sheathing panel is applied to a building frame, the reinforcement strips are generally aligned with framing members of the building. Preferably, the reinforcement strips are sufficient to provide an increased ductility over an equivalent unreinforced wood sheathing panel in an amount within the range of from about 75 percent to about 500 percent.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: March 2, 2004
    Assignee: University of Maine System Board of Trustees
    Inventors: Habib J. Dagher, William G. Davids