Patents by Inventor William L. Ducker

William L. Ducker 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).

  • Adjustable vane windmills
    Patent number: 4349315
    Abstract: A system of rotatably and pivotally mounted radially extended bent supports for radially extending windmill rotor vanes in combination with axially movable radially extended control struts connected to the vanes with semi-automatic and automatic torque and other sensing and servo units provide automatic adjustment of the windmill vanes relative to their axes of rotation to produce mechanical output at constant torque or at constant speed or electrical quantities dependent thereon.
    Type: Grant
    Filed: January 11, 1980
    Date of Patent: September 14, 1982
    Assignee: Wind Engineering Corporation
    Inventor: William L. Ducker
  • Adjustable vane windmills
    Patent number: 4348154
    Abstract: A system of rotatably and pivotally mounted radially extended bent supports for radially extending windmill rotor vanes in combination with axially movable radially extended control struts connected to the vanes with semi-automatic and automatic torque and other sensing and servo units provide automatic adjustment of the windmill vanes relative to their axes of rotation to produce mechanical output at constant torque or at constant speed or electrical quantities dependent thereon.
    Type: Grant
    Filed: January 11, 1980
    Date of Patent: September 7, 1982
    Assignee: Wind Engineering Corporation
    Inventor: William L. Ducker
  • Adjustable vane windmills
    Patent number: 4183715
    Abstract: A system of rotatably and pivotally mounted radially extended bent supports for radially extending windmill rotor vanes in combination with axially movable radially extended control struts connected to the vanes with semi-automatic and automatic torque and other sensing and servo units provide automatic adjustment of the windmill vanes relative to their axes of rotation to produce mechanical output at constant torque or at constant speed or electrical quantities dependent thereon.
    Type: Grant
    Filed: February 1, 1978
    Date of Patent: January 15, 1980
    Assignee: First National Bank of Lubbock
    Inventor: William L. Ducker