Patents by Inventor Burl D. Whittington

Burl D. Whittington 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).

  • Marine propeller with transversal converging ribs
    Patent number: 5368508
    Abstract: A marine propeller which includes arcuate ribs extending from each blade surface. Each rib is widely spaced at the blade's leading edge and curves inwardly towards the propeller hub to substantially converge at the blade's trailing edge. Each rib is further configured so as its height above the blade surface is highest at the blade's trailing edge and is tapered to a lower height at the leading edge. This rib configuration provides a greater blade surface area to produce greater thrust and overall higher propeller efficiency.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: November 29, 1994
    Inventor: Burl D. Whittington