Patents by Inventor Francis Shackelford

Francis Shackelford 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).

  • Publication number: 20050274311
    Abstract: The invention is directed to a boat lift of the type that is mounted on the pilings of a boat slip or dock having four pilings placed in a rectangular arrangement. The boat lift comprises in combination, a cradle upon which the hull of a boat is adapted to rest. A means for raising and lowering the cradle is provided and a cable connects the cradle to the means for raising and lowering the cradle. A drive unit is operatively associated with the means for raising and lowering the cradle and includes a motor having an output shaft adapted to drive the drive unit such that upon operation of the motor, the cradle is raised or lowered.
    Type: Application
    Filed: June 15, 2005
    Publication date: December 15, 2005
    Inventor: Francis Shackelford