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US 5,183,423 AGranted
Propulsion system for speedboats
OwnerCarlo Alinariinventor
Life of this patent
Estimating the term…
Abstract
The propulsion system includes a series of large inclined propellers which operate like the wheels of a vehicle and have the functions of lifting, propelling and steering the boat on the water.
Claims7
A propulsion system for speedboats, comprising a series of large screw propellers each having a plurality of blades under the hull, the planes of rotation of the propellers being substantially parallel to the direction of travel of the boat and inclined to the horizontal surface of the water at an angle of between 0.degree. and 90.degree., wherein the propellers are connected to the hull by means of damped resilient suspensions.
Dependencies are inferred from the claim text.