Patents by Inventor Les Fisher

Les Fisher 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).

  • Modular load bearing deck structure
    Publication number: 20040216250
    Abstract: A load bearing support structure includes a load bearing support and a load bearing deck. Such a support structure may be used in the construction of a bridge.
    Type: Application
    Filed: June 1, 2004
    Publication date: November 4, 2004
    Inventors: Chris Dumlao, Kristina Lauraitis, Les Fisher, Alan Miller, Eric Abrahamson
  • Modular polymeric matrix composite load bearing deck structure
    Publication number: 20030046779
    Abstract: A load bearing support structure in the form of a traffic-bearing highway bridge including at least one modular structural section. The at least one modular structural section includes at least one beam, the beam comprising a pair of lateral flanges and a medial web between and extending below the flanges. The beam preferably has a flat floor. A load bearing deck is positioned above and supported by the flanges of the at least one beam. The beam and load bearing deck are preferably formed of a polymer matrix composite material. The beam is positioned on and supported by one of a plurality of support members. The beam has a contoured shape configured to be matably supported by a support member having a reciprocally configured contoured shaped. Alternatively, a flat or L-shape support member can be utilized. Further alternatively, the load bearing deck comprising at least one sandwich panel is suitable for applications such as barge decks, hatchcovers, and other load bearing wall applications.
    Type: Application
    Filed: October 15, 2002
    Publication date: March 13, 2003
    Applicant: MARTIN MARIETTA MATERIALS
    Inventors: Chris Dumlao, Kristina Lauraitis, Les Fisher, Alan Miller, Eric Abrahamson
  • Modular polymeric matrix composite load bearing deck structure
    Patent number: 6467118
    Abstract: A load bearing deck structure is made from at least one sandwich panel formed of a ploymer matrix composite material. The sandwich panel comprises a plurality of substantially hollow, elongated core members having side walls, the core members being provided with an upper facesheet and a lower facesheet. Each facesheet is formed integrally with the side walls of the core members and at least one of the side walls is disposed at an oblique angle to one of the upper and lower facesheets so that the side walls and facesheets define a polygonal shape when viewed in cross section.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: October 22, 2002
    Assignee: Martin Marietta Materials
    Inventors: Chris Dumlao, Kristina Lauraitis, Les Fisher, Alan Miller, Eric Abrahamson
  • Modular polymer matrix composite support structure and methods of constructing same
    Publication number: 20020010973
    Abstract: A load bearing support structure in the form of a traffic-bearing highway bridge including at least one modular structural section. The at least one modular structural section includes at least one beam, the beam comprising a pair of lateral flanges and a medial web between and extending below the flanges. The beam preferably has a flat floor. A load bearing deck is positioned above and supported by the flanges of the at least one beam. The beam and load bearing deck are preferably formed of a polymer matrix composite material. The beam is positioned on and supported by one of a plurality of support members. The beam has a contoured shape configured to be matably supported by a support member having a reciprocally configured contoured shaped. Alternatively, a flat or L-shape support member can be utilized. Further alternatively, the load bearing deck comprising at least one sandwich panel is suitable for applications such as barge decks, hatchcovers, and other load bearing wall applications.
    Type: Application
    Filed: June 22, 2001
    Publication date: January 31, 2002
    Applicant: MARTIN MARIETTA MATERIALS
    Inventors: Chris Dumlao, Kristina Lauraitis, Les Fisher, Alan Miller, Eric Abrahamson
  • Modular polymer matrix composite support structure and methods of constructing same
    Patent number: 6081955
    Abstract: A load bearing support structure in the form of a traffic-bearing highway bridge including at least one modular structural section. The at least one modular structural section includes at least one beam, the at least one beam containing a pair of lateral flanges and a medial web between and extending below the flanges. A load bearing deck is positioned above and supported by the flanges of the at least one beam. The at least one beam and load bearing deck are preferably formed of a polymer matrix composite material. Each of the flanges of the at least one beam is positioned on and supported by one of a plurality of support members. Alternatively, the load bearing deck containing at least one sandwich panel is suitable for applications such as barge decks, hatchcovers, and other load bearing wall applications. Methods of constructing a support structure utilizing the modular structural section and support members are also provided.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: July 4, 2000
    Assignee: Martin Marietta Materials, Inc.
    Inventors: Chris Dumlao, Kristina Lauraitis, Michael Jacoby, Les Fisher, Alan Miller, Bryan Hurlbut, Eric Abrahamson
  • Modular polymer matrix composite support structure and methods of constructing same
    Patent number: 6023806
    Abstract: A load bearing support structure in the form of a traffic-bearing highway bridge including at least one modular structural section. The at least one modular structural section includes at least one beam, the beam comprising a pair of lateral flanges and a medial web between and extending below the flanges. The beam preferably has a flat floor. A load bearing deck is positioned above and supported by the flanges of the at least one beam. The beam and load bearing deck are preferably formed of a polymer matrix composite material. The beam is positioned on and supported by one of a plurality of support members. The beam has a contoured shape configured to be matably supported by a support member having a reciprocally configured contoured shaped. Alternatively, a flat or L-shape support member can be utilized. Further alternatively, the load bearing deck comprising at least one sandwich panel is suitable for applications such as barge decks, hatchcovers, and other load bearing wall applications.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: February 15, 2000
    Assignee: Martin Marietta Materials, Inc.
    Inventors: Chris Dumlao, Kristina Lauraitis, Les Fisher, Alan Miller, Eric Abrahamson