Patents by Inventor David Stuart Thompson

David Stuart Thompson 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).

  • Water turbine with bi-symmetric airfoil
    Patent number: 8115329
    Abstract: Known underwater turbine units suffer from problems, e.g. an ability to operate in ebb and/or flow tides. Accordingly, the invention provides aerofoil (5), wherein the aerofoil (5) is symmetrical about a mid-chord line (A) thereof. The aerofoil (5) may be symmetrical about a chord (B) thereof. The underwater turbine unit (3) comprises at least one turbine (25) which comprises at least one blade (20) which comprises the aerofoil (5).
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: February 14, 2012
    Assignee: Rotech Holdings Limited
    Inventor: David Stuart Thompson
  • Water Turbine with Bi-Symmetric Airfoil
    Publication number: 20080265583
    Abstract: Known underwater turbine units suffer from problems, e.g. an ability to operate in ebb and/or flow tides. Accordingly, the invention provides aerofoil (5), wherein the aerofoil (5) is symmetrical about a mid-chord line (A) thereof. The aerofoil (5) may be symmetrical about a chord (B) thereof. The underwater turbine unit (3) comprises at least one turbine (25) which comprises at least one blade (20) which comprises the aerofoil (5).
    Type: Application
    Filed: May 18, 2006
    Publication date: October 30, 2008
    Inventor: David Stuart Thompson