Patents by Inventor Lynn E. Osborn

Lynn E. Osborn 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).

  • Panel liner and method of making same
    Patent number: 7018577
    Abstract: A method of forming a liner for a passage such as a sewer includes forming panels composing the liner using a neat resin of a first density and a polymer concrete of a second, higher density. The neat resin is inserted into a mold cavity before the polymer concrete and is displaced upwardly by the polymer concrete pour to impregnate a fiber layer disposed along the periphery of the mold cavity. Resulting panels preferably have an offset joint to increase the joint strength between upper and lower panels forming the liner.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: March 28, 2006
    Assignee: INA Acquisition Corporation
    Inventors: Walter R. Bilgram, Lynn E. Osborn, James D. Caldwell, Jr.
  • Panel liner and method of making same
    Publication number: 20040157022
    Abstract: A method of forming a liner for a passage such as a sewer includes forming panels composing the liner using a neat resin of a first viscosity and a polymer concrete of a second, high viscosity. The neat resin is inserted into a mold cavity before the polymer concrete and is displaced upwardly by the polymer concrete pour to impregnate a fiber layer disposed along the periphery of the mold cavity. Resulting panels preferably have an offset joint to increase the joint strength between upper and lower panels forming the liner.
    Type: Application
    Filed: February 11, 2003
    Publication date: August 12, 2004
    Inventors: Walter R. Bilgram, Lynn E. Osborn, James D. Caldwell