Patents by Inventor Ian Michael Spencer

Ian Michael Spencer 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).

  • Lining for a landfill site
    Patent number: 6074132
    Abstract: A method of lining a side face (11) of a landfill site comprising the steps of erecting a framework (10) including laterally spaced substantially vertically extending members (12) adjacent the surface of the side face (11), covering the framework (10) with a wire mesh (15), filling the space between the mesh (15) and the side face (11) with pieces of substantially inert material (16), laying an impermeable liner (17) over the wire mesh (15) and constructing a retaining wall (20) over the liner (9), wherein the vertically extending members (12) are tubular and have spaced apertures thereto along their lengths.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: June 13, 2000
    Assignee: Hanson Quarry Products Europe Limited
    Inventors: Michael Leonard Davies, Ian Michael Spencer