Patents by Inventor David Allen Hubbel

David Allen Hubbel 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).

  • Lateral load bearing structural cantilevered system such as highway guardrail and bridge rail systems
    Patent number: 6935622
    Abstract: The present invention provides cantilevered structural support systems subjected principally to lateral-load conditions, such as guard rail systems, which are made of solid materials and which are designed to remove drifting snow from the road surface. The present invention identifies the design lateral-load plus vertical design loads imposed via installation activities plus design torsional load requirements plus design required soil-matrix resistance development then matches the structural requirements by way of either material mass and/or shape. The post and block section of the rail are combined into one curved object and divided into two or more branches, connecting the post/block object to the rail. The branch' median curve is above the highest point on the rail's surface. The sectional shape of the rail is elliptical and the axes are declined towards the surface of the road.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: August 30, 2005
    Inventors: Thorgeir Jonsson, David Allen Hubbel
  • Lateral load bearing structural cantilevered system such as highway guardrail and bridge rail systems
    Publication number: 20030077120
    Abstract: The present invention provides cantilevered structural support systems subjected principally to lateral-load conditions, such as guard rail systems, which are made of solid materials and which are designed to remove drifting snow from the road surface. The present invention identifies the design lateral-load plus vertical design loads imposed via installation activities plus design torsional load requirements plus design required soil-matrix resistance development then matches the structural requirements by way of either material mass and/or shape. The post and block section of the rail are combined into one curved object and divided into two or more branches, connecting the post/block object to the rail. The branch' median curve is above the highest point on the rail's surface. The sectional shape of the rail is elliptical and the axes are declined towards the surface of the road.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 24, 2003
    Inventors: Thorgeir Jonsson, David Allen Hubbel