Patents by Inventor Clark Simpson

Clark Simpson 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).

  • Patent number: 8875511
    Abstract: The Geothermal Wind System is a hybrid power production system using geothermal transfer of heat between native rock and an air mass circulating between two or more portals of substantially different vertical elevations by use of the stack effect and the buoyancy of heated air or gravity pulling cooled air to turn one or more wind turbines which drive one or more generators. This wind speed can be improved by use of a venturi valve in close proximity to the turbine(s). A novel example of an aerodynamic, adjustable radial venturi is also herein incorporated. Two modes of the GWS are herein described, one used at shallow depths having geothermal temperatures approximating the average exterior climate, and the second used with geothermal temperatures found at greater depths at substantially higher than outside temperatures. The GWS is a non-polluting, non-carbon burning, non-water-dependent power production system easily implemented in third world countries.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: November 4, 2014
    Inventor: Larry Clark Simpson
  • Publication number: 20130257055
    Abstract: The Geothermal Wind System is a hybrid power production system using geothermal transfer of heat between native rock and an air mass circulating between two or more portals of substantially different vertical elevations by use of the stack effect and the buoyancy of heated air or gravity pulling cooled air to turn one or more wind turbines which drive one or more generators. This wind speed can be improved by use of a venturi valve in close proximity to the turbine(s). A novel example of an aerodynamic, adjustable radial venturi is also herein incorporated. Two modes of the GWS are herein described, one used at shallow depths having geothermal temperatures approximating the average exterior climate, and the second used with geothermal temperatures found at greater depths at substantially higher than outside temperatures. The GWS is a non-polluting, non-carbon burning, non-water-dependent power production system easily implemented in third world countries.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Inventor: Larry Clark Simpson
  • Patent number: 5201629
    Abstract: A self-propelled, counterbalanced, container transporter vehicle having a frame, a counterweight supported at the rear, an elevating upright, carriage pick-up and lift frame assembly for lifting, transporting and stacking containers in which a tower structure supports a cab providing an operator's station with controls for hydraulically raising and lowering the upright, the cab has a wide angle front window area that partially wraps around the operator's station to permit a horizontal line of sight to the maximum extension of the lift frame and is sloped back to afford high angle vision to the maximum vertical extension of the upright for high stacking containers.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: April 13, 1993
    Assignee: Clark Material Handling Company
    Inventors: Clark Simpson, John Hodgman
  • Patent number: D332164
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: December 29, 1992
    Assignee: Clark Material Handling Company
    Inventor: Clark Simpson