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Non-planing boat hullRelated Patent Categories: Ships, Displacement-type Hull (e.g., Specific Aftbody, Etc.)Non-planing boat hull description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060231003, Non-planing boat hull. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] The present invention generally relates to hull construction for a small boat and is more particularly directed to an improved hull construction for an electric boat, which provides maneuverability and stability along with low wake generation. [0002] Boat hulls may be classified generally as flat bottom, V-bottom, and round bottom. [0003] Boats with flat bottom hulls generally have a shallow draft and while they may plane easily, unless the water surface is perfectly flat, they tend to give a rough ride because of the flat bottom pounding on each wave. They also tend to be less stable and require careful balancing of the load. [0004] V-bottom hulls tend to have a sharper entry into the water, which provides for a smoother ride in rough water, however, they generally require more power to achieve the same speed. [0005] Boats with round bottom hulls generally move easily through the water, especially at low speeds, however they tend to roll. [0006] With regard to the wave generation when a hull is moved forward through the water, the bow generates a bow wave and the stern generates a stern wave and a transverse wave. In addition, pressure waves directed downward may also be produced, which are generally by both a sharp and blunt end sterns. [0007] Generation of these waves does not improve the efficiency or the seaworthiness of the boat and in addition waste a great deal of energy. [0008] Further, such waves may also present a hazard to other vessels and can be a source of damage to embankments or shoreline structures. [0009] The present invention is directed to a non-planing boat hull, which produces little or no wake. SUMMARY OF THE INVENTION [0010] A non-planing boat hull in accordance with the present invention generally includes a forward portion having a bow with the forward portion having a width tapering smaller from a beam toward the bow. [0011] An aft portion of the hull includes a stern and the aft portion includes a width tapering smaller from the beam toward the stern. [0012] A keel is provided and disposed along a hull centerline with the keel having a back supporting a propeller and a forward height tapering smaller toward the bow. [0013] Fore topsides extending from the beam to the bow include an arcuate convex transition to the hull forward portion. [0014] The aft topsides extend from the beam to the stern and include an arcuate concave transition to the hull aft portion with the aft topside forming approximately a 90.degree. angle with a transom. The aft topsides further join the hull aft portion with the convex surface near a waterline of the hull. [0015] More particularly, the hull forward and aft portions form a teardrop shaped waterline, as well as providing a teardrop shaped displacement volume. [0016] This waterline and displacement volume results in little or no wake with hull speeds of up to about 6 knots. [0017] More particularly, the hull forward and aft portions form a relatively flat bottom and the waterline and displaced volume are generally unchanged at hull speeds up to about 6 knots. [0018] Further, the hull is smooth and includes no chines or strakes. BRIEF DESCRIPTION OF THE DRAWINGS [0019] The advantages and features of the present invention will be better understood by the following description when considered in conjunction with the accompanying drawings in which: [0020] FIG. 1 is a perspective view of a non-planing boat hull in accordance with the present invention generally showing a forward portion having a bow and an aft portion having a stern along with a keel disposed along a hull centerline; [0021] FIG. 2 is a side view of the hull shown in FIG. 1; [0022] FIG. 3 is a side view similar to FIG. 2 detailed with index lines and dimensions; Continue reading about Non-planing boat hull... Full patent description for Non-planing boat hull Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Non-planing boat hull patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Non-planing boat hull or other areas of interest. ### Previous Patent Application: Seam ravel preventing apparatus and ravel preventing method Next Patent Application: Apparatus and method for reducing fluid drag on a submerged surface Industry Class: Ships ### FreshPatents.com Support Thank you for viewing the Non-planing boat hull patent info. IP-related news and info Results in 0.42745 seconds Other interesting Feshpatents.com categories: Canon USA , Celera Genomics , Cephalon, Inc. , Cingular Wireless , Clorox , Colgate-Palmolive , Corning , Cymer , 174 |
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