Patents Assigned to William H. Flood
  • Thrust enhancing propeller duct assembly for water craft
    Patent number: 4637801
    Abstract: A propeller duct assembly for use on water craft which enhances the thrust of the propeller, increases fuel efficiency, stabilizes boat handling, serves as a safety factor for swimmers, and which also serves to protect the propeller against submerged objects.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: January 20, 1987
    Assignee: William H. Flood
    Inventor: William C. Schultz