This application claims priority to provisional patent application U.S. Ser. No. 61/665,063 filed on Jun. 27, 2012, the entire contents of which is herein incorporated by reference.
The embodiments herein relate generally to watercraft operated by a single user.
Prior to the disclosed invention, balancing oneself on a paddle board was challenging because water moving beneath the paddle board caused the paddle board to move at angles that were difficult for a user to anticipate. The prior art includes WIPO Publication 1990/014987 A1 filed by Nayes.
Nayes teaches a water walking device utilizing a pair of buoyant hulls. The hulls are identically shaped and lack a shape that naturally works with walking, accordingly they are unstable. Nayes solves this problem in two ways: first by installing stabilizing fins on the bottom of each hull and second by having the user insert one's foot into a recessed cavity in each hull to lower the center of gravity and therefore create greater stability.
This creates at least two problems solved by the present invention, first is falling over, if one loses balance on Nayes one is certainly inverted and being inverted with the only buoyant point being one's feet is extraordinarily dangerous when used in deeper water. Further, the stabilizing fins, while perhaps well intentioned are likely to get snagged in vegetation in shallower water. Embodiments of the present invention solve this problem by first, stabilizing the hulls in a more efficient manner which does not require tethering to a user's feet or stabilizing fins.
A dual section paddle board is configured to be stable in water which is shallow without fouling vegetation or hitting rocks. The dual section paddle board includes two board sections that are symmetrical along a single edge of each section to increase stability while paddle boarding. A connector joins the two board sections proximate one another permitting balance shifting that further increases stability. Each board section is made from a buoyant material in order to maintain buoyancy while avoiding damage to the board section.
The connector can vary depending on the embodiment. For instance, the connector can be an air bladder affixed to the buoyant material of each board section. The air bladder is filled with compressed air making it rigid. The connector can be a first air bladder affixed to buoyant material of each board section and the two board sections can be further attached to a second air bladder to allow greater flexibility to transfer weight without capsizing the dual section paddle board. The connector can be a pair of fasteners mechanically coupled to a tether such that the two board sections are sufficiently separated to provide stability in rougher water or close together to provide stability in calm water.
The detailed description of some embodiments of the invention is made below with reference to the accompanying figures, wherein like numerals represent corresponding parts of the figures.
By way of example, and referring to
Unlike Nayes which utilizes two identical hulls, embodiments of the present invention utilize two sections of a board that are symmetrical along a single edge of each section. This causes a greater mass of material to be in the instep of each board which facilitates balance while paddle boarding.
Turning to
Air bladder 14 air filled with compressed air 22 to ensure rigidity. In some embodiments, air bladder 14 can be made of neoprene which can be affixed to protective layer 16 in a known manner.
Unlike air bladder 14, air bladder 30 need not be rigidly inflated and the flexibility from it not being rigidly inflated allows for greater movement of first board section 12A away from second board section 12B. This construction can be useful for shallow waters that are flat, calm or slightly rough where a user needs greater flexibility to transfer weight from one foot to the other without capsizing two hull split embodiment 110.
Unlike air bladder 14 and air bladder 30, tethers 42 can have tension between the fasteners 40 adjusted to meet the needs of the user. This can be applied to rougher waters where one foot may need to move quickly away from the other foot in order to maintain stability.
Similar to tri-chamber arrangement 10, two hull tethered embodiment 310 utilizes a connector that can hold first board section 12A close to second board section 12B. This can be used to maintain stability in calmer seas, but with a similar construction to two hull tethered embodiment 210. Of course, using tethers 42 between fasteners 40 is one of many ways to accomplish this detachable tethering.
Tether 42 can be any known connection. This includes rods, bungee cords, or anything else which is effective. Fasteners 40 can be attached to the top bottom or inside of board sections 12 depending on user preference.
Persons of ordinary skill in the art may appreciate that numerous design configurations may be possible to enjoy the functional benefits of the inventive systems. Thus, given the wide variety of configurations and arrangements of embodiments of the present invention the scope of the invention is reflected by the breadth of the claims below rather than narrowed by the embodiments described above.
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