Abstract: A fin plug (10) for installation in a water craft, said fin plug (10) including: a first open cavity (20) adapted to receive a base portion (15) of a water craft fin (50); and, a resilient biasing rod (30) and a protruding member (35) cooperating with the biasing rod, said protruding member being adapted to abut the base portion (15) of said fin (50) when received in said first open cavity (20); wherein said biasing rod and protruding member are adapted to apply a force to the base portion of said fin to inhibit removal of said fin from said first open cavity.

Abstract: A standing torso support apparatus for paddleboards has a base removably attachable to a paddleboard, an adjustable-height support leg extending upward from the base, and a torso support attached to the top of the support leg. A user may lean against the torso support to aid in balance or power.

Abstract: A surfboard locking system includes a device for providing a securement point allowing a surfboard to be secured to a lock. The device includes at least a first piece and a second piece, each piece sized and shaped to be insertable into a fin box opening of a surfboard fin box. The first and second pieces are pieces couplable together within the fin box to form a securement, the securement sized and shaped such that the securement cannot be removed through the fin box opening. One of the pieces can include a passageway sized and shaped to accommodate a portion of a lock, such as the shackle of a padlock, to allow the surfboard to be securely locked to a cable or other object.

Abstract: A paddle board has two tracks integrally associated therewith for the further attachment of a slide within each track thereon. Thus, to effect motion of the slide associated with the track the Supski Paddle System has two actuation drives that are rotationally associated with the aforementioned slides one to each slide respectively. Upon user actuation of the drive using a pole associated with the drive the slide is directed to move longitudinally upon a track or to insert a paddle into and out of the water.

Abstract: A water propulsion water rescue board with an integrated water propulsion jet to provide additional thrust for rescue maneuvers and different selectable thrust levels as needed during the maneuver. The water propulsion water rescue board includes a body having an upper surface and bottom surface, a length between nine feet and eleven feet from nose to tail, a thickness between 3.5 and 6 inches, and a water propulsion system integrated into the body including a water inlet on the bottom surface, and a water propulsion nozzle and propeller on the upper surface. An electric motor connects to rotate propeller for drawing water into the propulsion system and expels a pressurized column of water through the water propulsion nozzle. A removable rechargeable battery is connected with the electric motor and a controller with a user control pad on the top surface of the body to allow the user to control the operation of the water propulsion system.

Abstract: An electronically powered, light emitting fin used with a surfboard or paddleboard, or similar water sports board. The fin is configured to be attached to the water sports board to provide illumination under the board when using the device. The lighted fin may be particularly useful when using the water sports board at night to illuminate water beneath the board.

Abstract: The present invention is a Low-Drag Fin and Foil System for Surfboards (10), particularly including cambered fin foils (40; 42). The invention (10) also discloses low-drag, directionally unstable fin positions wherein the lesser of negative angle of attack of a trailing fin (50), versus the higher or positive angle of attack of a forward fin (48), makes the board (12) highly maneuverable by creating a yawing moment that aids the rotation of the board (12) as it is turned. The system particularly utilizes fins (40) having foil (42) shapes in which either the cambered side (74) or the non-cambered side (76) is provided with a combination of a convex curvature (68) and a concave curvature (70) to result in an oscillating curvature (72) which has a positive effect on control and acceleration.

Abstract: A foldable recreational board that can be formed into a ridable board for riding and then folded when finished for easy transportation or storage. The foldable recreational board has foam sections covered by a flexible skin. The flexible skin includes a closing and opening mechanism. When the closing and opening mechanism is closed the skin is held very tight around the foam sections so that the foam sections are squeezed together tightly to form a ridable board. When the closing and opening mechanism is opened, pressure is released from the foam sections and the recreational board can be folded. In a preferred embodiment there are three foam sections and the opening and closing mechanism is two zippers attached to a ½ inch thick flexible neoprene skin.

Abstract: A securing arrangement for securing a water craft fin to a water craft having a fin plug, the fin plug having a first open cavity configured to receive a base portion (4018) of the water craft fin. The securing arrangement includes a resilient biasing rod (4030) and a protruding member (4035) cooperating with the biasing rod (4030). The protruding member (4035) is adapted to actuate when the base portion (4018) of the fin is inserted into the first open cavity of the fin plug so that the biasing rod (4030) and the protruding member (4035) inhibit removal of the fin from the first open cavity.

Abstract: An improvement to a conventional surfboard includes an impeller and an electric motor contained primarily within the body of the surfboard, whereby performance of the surfboard is substantially unaffected by the presence of the impeller and the electric motor. The electric motor is operatively connected to the impeller for providing a forward thrust of the surfboard. The improvement to the conventional surfboard also includes a throttle for selective control of the electric motor for operating the impeller to provide a forward thrust of the surfboard, the throttle being configured for use by a surfer lying in a prone position on the smooth top surface of the body of the surfboard. An extent of the surfer's energy that otherwise would be expended during paddling can be preserved for riding waves by using the impeller to provide the forward thrust during paddling.

Abstract: A breakaway skeg for the lower portion of a marine propulsion unit is disclosed. The skeg is designed such that the attachment features will fail under certain load or impacts, thereby preventing damage to the lower portion of the marine propulsion unit. The breakaway skeg is attached via shear tabs that include a relief that accounts for at least a part of the volume of the base portion of the shear tab. The shear tabs are designed to fail under certain circumstances before other components of the marine propulsion.

Abstract: [Problem] The present invention relates to a surfboard fin attachment structure. More specifically, the invention addresses the problem of providing a surfboard fin attachment structure, which is capable of detachably attaching a fin to a surfboard, wherein the attachment structure is capable of tight fitting even though easy attachment and detachment are possible and allows fitting without fin shaking or shuddering. [Solution] A surfboard fin attachment structure comprising: pin insertion recesses on both side surfaces of a cavity and, continuous therewith, grooves that continue in the depth direction of the cavity, said grooves extending from a given depth towards the back of the direction of board movement in the longitudinal direction of the fin box; and, on both sides of the fin attachment base, pins corresponding to the pin insertion recesses.

Abstract: The present disclosure describes a fin plug assembly for removably mounting a watercraft fin on a watercraft. In some embodiments the fin plug assembly includes a fin plug, a fin plug finishing insert and in some instances, a shelf-like support that is configured to house the fin plug assembly. Methods of making, methods of installing, and tools for installing the fin plug assembly in a watercraft are also described.

Abstract: A modular floatation board may have predetermined flexibility or rigidity characteristics where the longitudinal bending moment of the assembled board is generally transmitted in a distributed manner from a nose module to a tail module through an intermediate module. The modules may be coupled together by an interface connection established between the intermediate module and the nose and tail modules. A tensioning member may compress the modules in longitudinal alignment and prevent the modules of the assembled board from separating.

Abstract: A lateral flex sports board includes an elongated load supporting board having a top major surface, the top major surface configured to support a user, wherein the elongated load supporting board includes a portion that flexes transversely to the top major surface.

Abstract: Disclosed herein is a paddle board and a manufacturing method thereof, and in particular a paddle board and a manufacturing method thereof wherein a board body is formed of a double space sheet to accommodate air therein, thus obtaining a light structure and an easier storage and transfer, and a wedge part is formed at a lower side of a front end of a board so as to guide the current of water, thus enhancing speed feeling when in use.

Abstract: A dual-directional surfboard comprising a first end, and a second end such that either of said first end or said second end acts as a tail.

Abstract: A structure, such as a fin or water sports board, including a core having opposed first and second core outer surfaces. The structure further includes first and second fiber sheets, wherein the first fiber sheet extends along the first core outer surface and the second fiber sheet extends along the second core outer surface. A thermoplastic material impregnates the first fiber sheet and the second fiber sheet and bonds the first fiber sheet and the second fiber sheet to the core. The thermoplastic material defines an outer surface of the structure.

Abstract: A sport board with a forward outboard extension for supporting an action camera. The extension member has a curved section between generally straight sections that places the action camera forward and slightly above the surface of the board. The extension member may be a unitary member mounted on either surface of the board, or a two-piece member, with one piece mounted on the upper surface and another piece mounted on a lower surface. When the sport board is a surfboard, the construction of the extension member resembles a fin.

Abstract: Systems including powered skates with automatic motor control are provided. One such system includes a pair of powered skates, each including a foot platform configured to receive a foot of a rider, a plurality of wheels coupled to the foot platform, a motor coupled to at least one of the plurality of wheels, the motor configured to rotate the at least one wheel, and a load sensor coupled to the foot platform and configured to sense an applied force, and a controller coupled to each of the motors and to each of the load sensors, the controller configured to control each of the motors, using a single algorithm, based on signals received from each of the load sensors.

Abstract: Disclosed is a bi-directional watercraft, such as a surfboard, fin systems therefore, and method of use. Example fin systems may allow a user of the watercraft to perform bi-directional maneuvers and stunts. The watercraft may be bi-directionally symmetric or asymmetric with fins mounted on its undersurface on both ends. When underway, the fins at the operating rear of the watercraft deploy for stabilization in cross-currents, while the fins at the operating front remain pivoted out of the way so that they do not “catch” water and destabilize the watercraft. When the watercraft reverses in direction, and the front and rear ends swap with one another, biasing mechanisms cause the fins now at the front to pivot away and hydrodynamic forces cause the fins now at the rear to deploy. In some cases, holders keep the fins from inadvertently deploying when they are not needed.

Abstract: Board for traveling in ocean surf and method of fabricating same. The board includes a platform having a generally planer configuration. The platform includes a pair of relatively deep anti-slip knee wells of sufficient depth in the top surface thereof for allowing a surfer to make radical changes in board motion using his knees. According to an embodiment of the board, a channel extends along a portion of a bottom surface of the platform or optionally along the entire bottom surface of the platform for stabilizing the platform's trajectory, increasing the speed of the platform, and adding drive and direction to the platform while maneuvering in the ocean surf.

Abstract: The inventive skate technology comprises a wakeboard or other type of floatation board, particularly, but not solely, designed for use behind a watercraft and which has a longitudinal arc that curves from the lowest points upward at the tip and tail but is reversed in at least one section of the board.

Abstract: A sliding fin for a surfboard includes a base having a planar tab with an upper flange, a large fin piece having a first indentation, and a small fin piece for mating face-to-face with the large fin piece. The second fin piece has a second indentation that forms a channel that has a cross-sectional shape corresponding to a cross-sectional shape of the planar tab and upper flange, the channel being longer than the width of the planar tab, the small fin piece being translucent to enable the planar tab in the channel to be seen, the large and small fin pieces being slidable relative to the base on the planar tab.

Abstract: The present disclosure provides advantageous skateboard assemblies (e.g., advantageous skateboard guard assemblies). More particularly, the present disclosure provides advantageous guard/noseguard assemblies for skateboards and related methods of use. The present disclosure provides for mountable, interchangeable and/or removable guard/noseguard assemblies for skateboards. The skateboard guard assemblies typically include a contoured or shaped top surface, each contoured/shaped top surface configured and dimensioned to provide the user/rider at least one advantageous surface that a user/rider can position a foot onto/over during use (e.g., a surface that a user/rider can utilize to place or position a foot directly onto/above, with the bottom side of the user's foot contacting the top surface of the guard assembly).

Abstract: Exemplary embodiments of the present invention would provide a rotatable footplate integrated with a corresponding bearing and well assembly that is imbedded into, screwed into, or otherwise, integrally a part of, a single-board sports board, such as a snowboard.

Abstract: A support system is configured to increase buoyancy and stability of a paddle board having a central axis running from bow to stern. The support system includes a port side float connected to the paddle board such that the port side float is parallel to the central axis. A starboard side float is connected to the paddle board such that the starboard side float is parallel to the central axis. The port side float and the starboard side float increase lateral stability on the paddle while reducing draft on the paddle board making it safer to float in shallow water.

Abstract: Described herein are floatation devices, surfboards, surfboard blanks and methods of manufacture. The board or device design is altered by removal of a traditional stringer or stringers and instead form a composite of different foams to produce a board or device with improved strength and durability along with similar or even better board dynamics.

Abstract: A riding board such as a surfboard extending from a tip or front end longitudinally to a tail or rear end. The rear end terminates at a board interface plate that is incorporated into and as part of the riding board. The board interface plate is adapted to be either the tail section of the riding board or alternatively, a coupling means for connecting a tail block to the rear end of the board. The board interface plate includes a plurality of spaced apart coupling cavities that extend inwardly into the riding board body from the rear end. The surfboard may also be used with an interchangeable tail block having a tail faceplate that interfaces and couples with the interface plate on the surfboard. The tail block may be configured to most any desired tail configuration, size and shape.

Abstract: The subject matter disclosed herein relates to a system for a water-going board that boosts the forward momentum of the board. This system may include a board having a bottom surface. The system may also include one or more cavities formed in the bottom surface of the board. These cavities may be configured to catch forward-moving energy of water moving forward relative to the board, while allowing passage of rearward-moving energy of water moving rearward relative to the board.

Abstract: A variable-resistance kickboard apparatus includes a buoyant kickboard body having an upper surface, a lower surface, and an opening extending through the kickboard body between the upper and lower surfaces. The apparatus also includes a blade extending through the opening and slidably engaged in the opening. The blade can be raised and lowered in the opening to adjust the proportion of the blade that extends below the lower surface.

Abstract: Described herein are systems and apparatuses for detecting and sharing characteristics of a ride on a watercraft. In general, a watercraft apparatus may include at least one fin coupleable to a bottom portion of a planar body. In a preferred embodiment, the fin may define a fully enclosed cavity configured to receive a ride tracking device. In general, a watercraft system may optionally include a planar body configured for moving across a water surface and for carrying a rider. In general, a watercraft apparatus may include at least one fin coupled or coupleable to a bottom portion of the planar body. In a preferred embodiment, the fin may define a fully enclosed cavity, and a ride tracking device may be disposed within the cavity.

Abstract: A watersports board is disclosed comprising: at least one non-cork layer; and at least one cork layer. Preferably, the watersports board further comprises a hollow core. More preferably, the watersports board comprises: a multiplicity of non-cork layers; and a multiplicity of cork layers; wherein said cork and non-cork layers are arranged alternately.

Abstract: The invention relates to a volume element (10) comprising at least one inner chamber (12), which is bordered by an at least substantially flexible material and which can be inflated with a gas, and comprising at least one outer chamber (14), which is bordered by an at least substantially flexible material, which is fluidically separated from the at least one inner chamber (12), and which surrounds at least some regions of the outer circumference of the inner chamber (12). Granular material is received in the outer chamber (14) for absorbing pressure forces acting on the volume element (10) from the direction of the outer chamber (14).

Abstract: A rider-controllable skimboard includes a planar board having a top surface and a connection mechanism mounted to the top surface and proximate a nose of the planar board. The connection mechanism has a vertical pivoting mechanism and a lateral pivoting mechanism. The skimboard further includes a handle mechanism connected with the vertical pivoting mechanism and the lateral pivoting mechanism of the connection mechanism for respective limited vertical pivoting and lateral pivoting of the handle relative to the planar board. The handle mechanism has a length of 80 to 120 percent of a length of the board, such that in a non-pivoted position a handgrip connected with the handle mechanism is positioned within 20 percent of the length of the board from the tail, and such that the limited vertical pivoting of the handle by the rider positions the upper stem portion substantially horizontal and proximate the rider's waist.

Abstract: An air vent that passes from the deck of a surfboard through to its bottom. The vent may have a wide variety of shapes. The trailing boundary of the vent's lower portion is preferably inclined forward toward the surfboard's nose. The inclination serves to prevent water flowing upward. Instead, air is entrained by the water flowing across the vent's bottom exit and pulled downward. A portion of the entrained air flows rearward out of the bottom exit along the surfboard's bottom. This entrained air forms an air film between the board's bottom and the surrounding water, thereby reducing friction.

Abstract: The present invention refers to a stand-up board (1) endowed with a lighting system and an underwater viewing window (3) hermetically placed between the upper (2) and lower (8) plates, provided with a waterproof box for feeding battery (6), and a vapor purge valve (7); furthermore, the referred board has a visual alert signaling system (4 and 5) arranged along bow and stern of the respective stand-up board (1), that may be self-powered or use a feeding battery.

Abstract: A watersports board includes a first rail handle retaining feature disposed along a first rail of the watersports board and configured to releasably attach a first rail handle at various positions along the first rail. A second rail handle retaining feature disposed along a second rail of said watersports and configured to releasably attach a second rail handle at various positions along the second rail.

Abstract: A board including a contact section, and a first step section which is at a different height from the contact section so that it does not make contact with a substantially level water surface when the board is at rest on the top of the substantially level water surface. The board further including a first hydrofoil fixed to the first step section. The first hydrofoil includes a keel and the first hydrofoil is fixed the first step section so that the keel is substantially perpendicular to the board. The first hydrofoil includes a wing which is fixed to and substantially perpendicular to the keel of the first hydrofoil. The wing is angled relative to the first step section from zero degrees to ninety degrees. The board may include a second step section and a second hydrofoil, which may be fixed to the second step section.

Abstract: A passively stable personal hydrofoil watercraft that has a floation device, wherein a user can ride in a prone, kneeling, or standing position. The watercraft includes a strut having an upper end interconnected with the flotation device and lower end connected with a hydrofoil. The hydrofoil greatly reduces the power required to travel at higher speed. The watercraft also includes a propulsion system connected to the hydrofoil. Both longitudinal and directional control of the watercraft is via weight shift, eliminating the need of any movable surfaces. The floation device, strut, and hydrofoil may be permanently interconnected or may be detachable.

Abstract: The invention comprises a waterborne craft having a hull, board or base, and a fin, keel, centerboard or the like. One or more air conduits exit the hull, board or base at or adjacent at least one side of the fin, keel or centerboard, or exit the fin, keel, or centerboard, excluding the leading edge of the fin, keel or centerboard in use, in a position such that the conduit in use provides or the conduits in use provide air to a position at or adjacent at least one side of the fin, keel or centerboard.

Abstract: A fin cover for protecting environmental surroundings from a water vessel fin during non-use of the water vessel preferably includes a body capable of receiving the water vessel fin therein. Such a body may have a reinforced closed distal end provided with a guard. The body may further have a plurality of rubber grooves located at an inner surface thereof. At least one fastener attached to the body in such a manner that the body is maintained at a substantially stable position about the water vessel fin.

Abstract: A sports mat includes a foam sheet, an adhesive bonding film, a patterned layer and a skid proof layer. The foam sheet is made of polyethylene foam. The adhesive bonding film applied to a top surface of the foam sheet. The patterned layer has a plastic film and a pattern printed in a bottom surface of the plastic film. The plastic film together with the pattern is joined on top of the adhesive bonding film. The skid proof layer, made of thermal plastic rubber, is coated over a top surface of the plastic film. Additionally, the skid proof layer together with the patterned layer, the adhesive bonding film and the foam sheet defines a plurality of indentations and protrusions over a top surface of the skid proof layer so as to strengthen connection therebetween.

Abstract: The present invention features a body board system for giving a user a greater sense of maneuverability and control when using the body board. The system features a generally planar body board having a channel located in a body board top surface. The system features a first pivoting base located in a channel first end and a second pivoting base located in a channel second end. A handle assembly is pivotally located on the top surface and features a handle with a handle first end pivotally located on the first pivoting base and a handle second end pivotally located on the second pivoting base. For a first position, the handle is adapted to be pivoted from the channel and raised to an angle for use by a user and for a second position the handle is adapted to be pivoted into the channel.

Abstract: A stand up paddle surfboard (SUPS) and associated paddle is provided. The SUPS may have up to two containers affixed generally towards the bow. A first container is designed to retain refuse and a second container is designed to retain game ball(s). The paddle includes a removable handle on a first side of a shaft and a paddle with a securable net and hook on the second side of the shaft. The securable net and hook may be employed to remove refuse found in the water and place such in the first container. The removable handle may be replaced with a game net permitting a host of ball toss games and the like to be played, using the second container to retain such balls. The SUPS and associated paddle may be modified for watersports as well as environmental cleanup activities.

Abstract: A board including a contact section, and a first step section which is at a different height from the contact section so that it does not make contact with a substantially level water surface when the board is at rest on the top of the substantially level water surface. The board further including a first hydrofoil fixed to the first step section. The first hydrofoil includes a keel and the first hydrofoil is fixed the first step section so that the keel is substantially perpendicular to the board. The first hydrofoil includes a wing which is fixed to and substantially perpendicular to the keel of the first hydrofoil. The wing is angled relative to the first step section from zero degrees to ninety degrees. The board may include a second step section and a second hydrofoil, which may be fixed to the second step section.

Abstract: A personal watercraft body comprises a recess configured to receive similarly shaped cassettes. A first cassette may be motorized to propel the body relative to a body of water. A second cassette may be non-motorized and may include a storage space therein for storing personal items. An insert may be disposed between the cassettes and the recess to orient and fit the cassettes within the body.

Abstract: This invention provides for a new design of recreational water boards that are significantly more stable than traditional boards in the class of standup paddle boards, windsurfing boards, and surf boards. Higher stability is achieved by shifting the primary buoyancy of the board to the “rail hulls” located on each side of the board deck creating a tunnel-hull effect. This provides a unique ability to make the board more stable for the average or beginner rider. This new design is intended to be a multipurpose platform allowing the rider to use as a standup paddle board, windsurf board, and surf board. In addition because the design is very stable it can be configured with a removable seat to allow the rider to paddle while seated. The increased stability provided by the tunnel hull effect also eliminates the need for a fixed rudder or fin to generate directional stability.

Abstract: The present invention relates to a lifted fin apparatus comprising one or more lifted fin elements with foiled tin components for a reduction of pressure and drag and an increase in surfboard lift as well as a method of achieving surfboard lift through, the use of said apparatus. Generally, the lifted fin apparatus comprises two or more lifted fin elements exhibiting a foil design on one or more of the fin surfaces. The individual fin elements may comprise a substantially vertical fin attached to a first edge of a base member and oriented at a substantially 90° angle in relation to the bottom surface of the surfboard or to the first edge of the base member. The fin elements may further comprise an angular fin mounted to a second edge of the base member at one end and the lower portion of the first, fin at the other end. In said embodiment, a bend or elbow is formed between a first fin component of angular fin and base member proximate the point of attachment at second edge of base member.

Abstract: The present invention relates to a fastening system for a sliding board comprising, respectively, a base delimiting a housing in which a shoe is designed to be immobilized, means for adjusting the position of said base on the board, and a vertical locking pivot cooperating on the one hand with an anchoring element secured to the board, and on the other hand bearing rotational blocking elements supported by a calibrating disc, characterized in that said pivot is made up of an assembly secured to the base comprising a central slug whereof the lower end is designed to be retractably housed in said anchor element and the upper end is connected to at least one rotating maneuvering member ensuring the rotation of said lower end in the anchor element. The invention also relates to a sliding board equipped with said fastening system.