Patents by Inventor John J. Ahlskog

John J. Ahlskog 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).

  • Curb and safety rail system for a bridge deck
    Patent number: 6073293
    Abstract: A light-weight, corrosion-resistant, readily installed bridge deck is formed of modular deck panels spliced to each other on site. Each of the deck panels is shop-fabricated by longitudinally welding flanges of adjacently placed multi-void extruded aluminum alloy structural elements. Transfer splices of longitudinally adjacent elongate elements are made by providing shear elements connecting individual elongate structural elements of each deck panel end-to-end prior to longitudinal welding of adjacent elongate elements, with the end joints between the elongate elements being arrayed in a staggered manner. A safety rail system is mounted to run alongside and above outer edges of the finished bridge deck mounted to a system of support girders.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: June 13, 2000
    Assignee: Reynolds Metals Company
    Inventors: John J. Ahlskog, John Randolph Kissell, Brian J. Malloy, Adam D. Matteo, Glen A. Taylor, Kurt P. Thompson, George B. Tyler, Roman Wolchuk
  • Modular bridge deck system including hollow extruded aluminum elements
    Patent number: 5901396
    Abstract: A light-weight, corrosion-resistant, readily installed bridge deck is formed of modular deck panels spliced to each other on site. Each of the deck panels is shop-fabricated by longitudinally welding flanges of adjacently placed multi-void extruded aluminum alloy structural elements. Transfer splices of longitudinally adjacent elongate elements are made by providing shear elements connecting individual elongate structural elements of each deck panel end-to-end prior to longitudinal welding of adjacent elongate elements, with the end joints between the elongate elements being arrayed in a staggered manner. A safety rail system is mounted to run alongside and above outer edges of the finished bridge deck mounted to a system of support girders.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: May 11, 1999
    Assignee: Reynolds Metals Company
    Inventors: John J. Ahlskog, John Randolph Kissell, Brian J. Malloy, Adam D. Matteo, Glen A. Taylor, Kurt P. Thompson, George B. Tyler, Roman Wolchuk
  • Modular bridge deck system consisting of hollow extruded aluminum elements
    Patent number: 5810507
    Abstract: A light-weight, corrosion-resistant, readily installed bridge deck is formed of modular deck panels spliced to each other on site. Each of the deck panels is shop-fabricated by longitudinally welding flanges of adjacently placed multi-void extruded aluminum alloy structural elements. Transfer splices of longitudinally adjacent elongate elements are made by providing shear elements connecting individual elongate structural elements of each deck panel end-to-end prior to longitudinal welding of adjacent elongate elements, with the end joints between the elongate elements being arrayed in a staggered manner. A safety rail system is mounted to run alongside and above outer edges of the finished bridge deck mounted to a system of support girders.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: September 22, 1998
    Assignee: Reynolds Metals Company
    Inventors: John J. Ahlskog, John Randolph Kissell, Brian J. Malloy, Adam D. Matteo, Glen A. Taylor, Kurt P. Thompson, George B. Tyler, Roman Wolchuk
  • Modular bridge deck system consisting of hollow extruded aluminum elements
    Patent number: 5651154
    Abstract: A light-weight, corrosion-resistant, readily installed bridge deck is formed of modular deck panels spliced to each other on site. Each of the deck panels is shop-fabricated by longitudinally welding flanges of adjacently placed multi-void extruded aluminum alloy structural elements. Transfer splices of longitudinally adjacent elongate elements are made by providing shear elements connecting individual elongate structural elements of each deck panel end-to-end prior to longitudinal welding of adjacent elongate elements, with the end joints between the elongate elements being arrayed in a staggered manner. A safety rail system is mounted to run alongside and above outer edges of the finished bridge deck mounted to a system of support girders.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: July 29, 1997
    Assignee: Reynolds Metals Company
    Inventors: John J. Ahlskog, John Randolph Kissell, Brian J. Malloy, Adam D. Matteo, Glen A. Taylor, Kurt P. Thompson, George B. Tyler, Roman Wolchuk