Serrated keel
OwnerNeil Schexnaiderinventor
Life of this patent
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Abstract
A boat hull includes a serrated keel which is utilized to dissipate local energy and increase efficiency by reducing drag. In one embodiment, the boat hull preferably includes serrations which are teardrop shaped with a ratio of 3 to 1 in that the length of the teardrop cutout is 3 times the depth.
Claims13
A boat hull including a serrated keel, wherein the serrated keel comprises at least two serrations, said serrations having a depth which is less than a length of the serration, said serrations being generally V-shaped when viewed from below the hull, wherein each serration has a starboard portion and a port portion, a fore end and an aft end, said starboard and port portions meeting at a centerline of the hull and each extending from the centerline of the hull rearwardly and away from the centerline of the hull.
A boat hull comprising a serrated keel, at least two lifting strakes, a starboard chine, a port chine, and at least one hull step,
- wherein the serrated keel comprises at least two serrations, said serrations having a depth which is less than a length of the serration, each serration comprising two teardrop shaped cutouts which meet at a centerline of the hull, each teardrop cutout departing from the centerline of the hull at an oblique angle towards an aft portion of the hull;
- wherein the serrations comprise aft hull serrations;
- wherein said aft hull serrations do not cross the at least two lifting strakes;
- and
- wherein the at least one hull step crosses the at least two lifting strakes and extends from the starboard chine to the port chine.
Dependencies are inferred from the claim text.