Abstract: The invention relates to a cover or case for goods, in particular for use as a cover or case for hobby or sports equipment. In an embodiment, the case has an inner portion, formed of expanded polypropylene (ePP) and defining a cavity for receiving at least part of the item. The case also includes an outer layer, formed of self-reinforcing polypropylene (srPP), arranged to cover an outer surface of at least part of the inner portion. In further embodiments, the cover is formed of two or more sections that may be arranged to at least partially overlap, wherein adjusting the overlap of the at least two sections changes the dimensions of an inner cavity within the cover or case. The case may be telescoping, in order to provide adjustable dimensions for a cavity within the case.

Abstract: Conventional surfboards enable a rider to catch a wave and ride towards the shoreline while utilizing the power of the ocean to enjoy the ocean waves uniquely. A low-profile motorized surfboard has been developed to assist riders who may have a disability or struggle to get into the position necessary to begin riding the waves. The surfboard may comprise at least one propeller and electromechanical motor, which may provide propulsion for the rider. The surfboard may have an internal power system and supporting circuitry for safe and reliable propulsion. The motorized surfboard may have a low-profile system that is collapsible and allows for the rider to enjoy the surf as if the surfboard were a conventional system. The system may also function to return the rider to the shoreline.

Abstract: A foam product includes a foam core, a soft skin covering the foam core, and a base structure on which the foam core is disposed. The foam core of expanded beads has an outer surface on which some outermost beads of the expanded beads are exposed and bulging outward with different heights to form a bubbly texture. The foam skin has an inner surface attached to the outer surface of the foam core, and has at its inner surface a plurality of concave cavities each matedly surrounding a respective one of the bulging, outermost beads on the outer surface of the foam core.

Abstract: A wind turbine blade assembly includes a first blade half and a second blade half fixed to the first blade half, defining a blade interior therebetween. The wind turbine blade assembly includes a shear web includes at least one aperture formed therein. The wind turbine blade assembly includes at least one bulkhead attached to the shear web, wherein the shear web and the at least one bulkhead are disposed in the blade interior. In some embodiments the at least one bulkhead includes a frame and a removable lid in order to expose the blade interior and the lid is returnably fixable to the at least one bulkhead. In some embodiments the first and second bulkheads include fluid conduits disposed therethrough and are spaced from one another to define first and second air circulation zones.

Abstract: A water ski system includes an elongate ski body member having an aft end portion with a mounting face. Interchangeable tail members having an engagement face are configured to be selectively mounted to the ski body such that the engagement face of the tail member abut the mounting face of the ski body member. Attachment hardware removably fixes the selected tail member to the ski body member. The interchangeable tail members may have a variety of shapes and lengths, allowing a skier to customize the water ski to accommodate differing water ski styles, water, conditions, and skill levels.

Abstract: The invention provides a solution to people who want to enjoy therapeutic exercises in water using body boards but do not yet have the necessary skills to maneuver themselves alone. This invention serves as a way of acquiring these skills through a body board anchored to a fixed position and leaving a reasonable amount of space for the user to freely move his/her body without interfering with the operation of the board.

Abstract: A board for a water sport comprises a front surface, a back surface, an upper surface between the front surface and the back surface, a first recess proximate the front surface and within the upper surface, the first recess comprising one or more attachment means for removably attaching a training device to the upper surface, and a second recess proximate the back surface and within the upper surface, the second recess comprising one or more additional attachment means for removably attaching a guidance device configured to facilitate at least partial control of the board. Related sets and boards for water sports are also disclosed.

Abstract: A smart clothing and backpack system enables a user to perform many actions. The smart clothing includes circuitry and/or is made of a conductive material enclosed in an insulation material. The smart clothing includes a set of sensors configured to detect body information. The smart clothing includes multiple electromagnets configured to adjust a size of the smart clothing. The electromagnets are configured to have an increased attraction to make the smart clothing tighter on the body of the user. The system includes a smart backpack to communicate with the smart clothing. The smart backpack includes a Radio Frequency IDentification (RFID) reader configured to detect RFID tags on or in items within the smart backpack. Many other features are able to be implemented with the smart clothing and backpack system. The smart clothing is able to include a wetsuit configured to communicate with a surfboard and/or a backpack.

Abstract: A traction system comprising interchangeable hollow kick tails, mounting plates and traction pad material for mounting to the deck of a surfboard and skateboard, and a skateboard uniquely designed to have the same arched deck as a typical surfboard so that said mounting plates can be used to mount the hollow kick tails to surfboards and said skateboard. The kick tails are configured with a ramped face angled optimally for surfing. Different variations include a ramp to a flat top, a ramp to a vertical face, a ramp to an angled overhang and a ramp to a horizontal overhang. The wide ramp area design in the kick tails provides support for the entire rear foot while surfing and helps the surfer perform aggressive maneuvers without falling. The interchangeable kick tails can be removed from a surfboard and attached to a surfer's skateboard or removed from their skateboard.

Abstract: Apparatus and systems are provided that enhance the use of a one wheel skateboard. Some of the apparatus described provide lateral surfaces that engage outer portions of a user's feet. Other apparatus facilitate the engagement of common snowboard bindings to a one wheel skateboard, thereby widening the spectrum of tricks that can be performed.

Abstract: Methods and systems are provided for concave footpads for a personal transport device. In one example, the concave footpads may be coupled to the personal transport device, arranged between an operator's feet and an upper surface of the personal transport device, the upper surface including a pressure transducer.

Abstract: The present disclosure relates to a clothing treatment device capable of omitting a frame for structurally connecting an inner case and a cabinet by filling a foaming agent between the inner case and the cabinet forming an appearance. The clothing treatment device comprises a cabinet having an opening at the front thereof: a door which is rotatably provided in front of the opening to open and close the opening; an inner case which is provided in the cabinet to form an accommodation space in which clothes are accommodated, and a hot air supply unit which is provided at the lower portion of the inner case to supply at least one of hot air and moisture to the accommodation space, wherein the inner case is formed of a styrene resin that maintains adhesion to the foaming agent injected into the inner portion of the cabinet.

Abstract: The present invention relates to an inflatable tandem surf bodyboard, methods of making, and a kit that includes a tandem surf bodyboard, an air pump, a maintenance kit, and a carry bag. The tandem surf bodyboard can accommodate more than one rider, allowing two riders to share and surf a wave. The inflatable tandem surf bodyboard comprises a base that is cut into the shape of a surf bodyboard, a base fabric layer is applied over the base, an intermediate portion material forms an air chamber, an upper layer is fastened to the intermediate portion material, a deck pad layer is applied over the upper layer, a first rail layer is applied around the perimeter of the surf bodyboard sealing the edges, and a second rail layer is applied over the first rail layer. An air inlet allows the tandem surf bodyboard to be inflated.

Abstract: A power surfboard includes a surfboard body defining a first side, a supporting piece including at least one first fastener, and a power assembly. An accommodating groove is defined on the first side of the surfboard body. The supporting piece is arranged in the accommodating groove. The power assembly includes a power housing, an operating assembly, and a power source. The operating assembly includes an operating body, at least one second fastener connected to inner side walls of the operating body, and at least one operating piece arranged on the operating body. The power assembly is detachably arranged in the accommodating groove. When each operating piece is in a first state, each second fastener is connected to a corresponding first fastener. When each operating piece is in a second state, each second fastener is separated from the corresponding first fastener.

Abstract: An electronic device includes a casing, an antenna, a plurality of screw members, and a board. The casing includes: a first cover including a first wall from which a display screen of a display device is exposed; and a second cover overlapping with the first cover in a first direction intersecting with the display screen. The antenna is provided between the first cover and the second cover. The screw members connect the first cover and the second cover. The board is provided, on an opposite side of the antenna, away from one of the screw members that is closest to the antenna. The board is provided without being fastened along with the first cover and the second cover by the one of the screw members.

Abstract: The present invention is used in water board sports but maybe of benefit to other water vessels; the present invention assists in the planing of water sport boards; the present invention was initially designed for windsurfing it can be used in surfing, kite-boarding and with other water crafts; the present invention uses one or more hybrid-fins, referred to as Squid-Fins™, along with a new base and fin-box that allows for more adjustments and easier swapping of fins; this system helps the board get up on a plane earlier and stay on that plane longer along with making it possible to add new characteristics to the performance of the board including hydro-foiling.

Abstract: Presented are weight distribution systems for aircraft center of gravity (CG) management, methods for making/operating such systems, and aircraft equipped with CG management systems. A method is presented for managing the CG of an aircraft. The aircraft includes first and second landing gears and an airframe that removably attaches thereto one or more payloads and/or hardware modules. The method includes supporting the aircraft on a support leg that operatively attaches to the airframe and, while supported on the support leg, determining if the aircraft pivots onto the first or second landing gear. If the aircraft pivots onto either landing gear, the method responsively identifies a new airframe position for the payload/hardware module that will shift the aircraft's CG to within a calibrated “acceptable” CG range; doing so should balance the aircraft on the support leg. The payload/hardware module is then relocated to the new airframe position.

Abstract: A biomechanically adapted dual direction sportsboard. This stance-specific sportsboard accommodates a rider's stance, whether they are a “regular-foot” or a “goofy-foot.” This stance-accommodating dual direction sportsboard allows the rider much greater control since the board accommodates the specific biomechanics of the rider's dominant stance, whether their preference is to ride with their left foot in front or their right foot in front. The dual direction sportsboard has rails which are offset from each other, which allows for a rider with fixed foot positions to significantly change the trim of the board by shifting from heel-side rail to toe-side rail or back to heel-side rail. This provides the rider much greater control over the board while performing surfing-style maneuvers, especially with the board attached to their feet. Additionally, for kiteboarding, the offset rails allow for greater windward ability than with legacy designs.

Abstract: Systems and methods to provide an exterior stringer system inflatable paddleboard. The exterior stringer system inflatable paddleboard maintains the benefits of a baseline inflatable paddleboard while providing increased strength, such as increased rigidity or stiffness. The exterior stringer system is positioned on the bottom surface of a baseline inflatable paddleboard. In one embodiment, the exterior stringer system is formed by a set of longitudinal stringers positioned on opposite sides of an inflatable paddleboard and a set of transverse stringers arranged in an X configuration between the longitudinal stringers.

Abstract: A standup paddleboard (SUP) seat assembly for securing to an SUP includes a seat, an upper post having the seat mounted on an upper end of the upper post, and a lower post. The upper post is configured to extend from the lower post in order to adjust a height of the seat. The seat assembly also includes a bracket secured to a lower end of the lower post, and a base plate having a lower surface and an upper surface. The base plate is secured to the lower post via the bracket. In addition, the seat assembly includes a plurality of suction cups secured to the lower surface of the base plate, where the plurality of suction cups is configured to be secured to a top surface of an SUP, and a strap and configured to be wrapped around the SUP and tightened.

Abstract: A method of assembling a watercraft of a family of watercraft includes, when assembling a first watercraft, attaching a front hull panel to a rear hull panel such that the front hull panel extends forwardly of the rear hull panel. The front hull panel and the rear hull panel form a hull of the first watercraft. The method also includes, when assembling the second watercraft: attaching a hull extension panel to the rear hull panel such that the hull extension panel extends forwardly of the rear hull panel; and attaching the front hull panel to the hull extension panel such that the front hull panel extends forwardly of the hull extension panel. The front hull panel, the hull extension panel and the rear hull panel form a hull of the second watercraft. The second watercraft has a second hull length greater than a first hull length of the first watercraft.

Abstract: A motorized surfboard fin attached to the bottom of a surfboard to assist a surf rider in paddling, propulsion, and catching a wave, is disclosed. The motorized fin device integrates a propeller, motor, battery, charging assembly, and related electronics, which are activated by the rider via a remote control. The fin is adapted to fit standardized fin securement systems by way of interchangeable connectors. The remote control has geolocation tracking and wireless charging capability. A software application for use with a smartphone is used to perform configuration and maintenance functions.

Abstract: The present invention disclosed a foam product and the manufacturing method thereof. The foam product includes a foam core, an outer skin, a cross-linked foam sheet and a bottom plate, wherein the aforementioned layers are all pre-made. The cross-linked foam sheet is laminated onto a bottom surface of the foam core, and the outer skin is then laminated onto a top surface and a periphery of the foam core. Lastly, the bottom plate is laminated onto the cross-linked foam sheet, wherein, the bottom plate has a non cross-linked foam sheet and a non-foam plastic plate, so that when the bottom plate is laminated onto the crossed-link foam sheet, the non cross-linked foam sheet is sandwiched between the cross-linked foam sheet and the non-foam plastic plate.

Abstract: The cupholder for snowboard is configured for use with a snowboard. The snowboard further comprises a binding. The cupholder for snowboard is a containment structure. The cupholder for snowboard attaches to the binding of the snowboard. The cupholder for snowboard is configured for use with a beverage. The cupholder for snowboard stores the beverage during the use of the snowboard. The cupholder for snowboard comprises the snowboard and containment apparatus. The containment apparatus attaches to the binding of the snowboard. The containment apparatus stores the beverage.

Abstract: A kiteboard includes a base, a front extension and/or a back extension. The base includes a top face and a bottom face and an outer edge face. The outer edge face is extending in a circumferential direction along an outer contour of the top face and the bottom face and includes a first mechanical interface. The front extension and/or the back extension include a top face and a bottom face and an inner edge face. The inner edge face extends between the top face and the bottom face along an inner contour and corresponds at least partially to the outer contour of the base. The inner edge face further includes a second mechanical interface, such that in an assembled position the first and the second mechanical inter-face are engaged with each other to position the front extension and/or the back extension with respect to the base.

Abstract: Described is an electronic system for the movement of boats (10) equipped with an electric water-jet engine (11), comprising a first electronic device(30), composed of a first Bluetooth or Wi-Fi circuit (33), a first accelerometer (34) and at least a first sensor (21) designed to measure a thrust force of the user(1) of the boat (10), which is positioned on the paddle, oar, fin or other palm-like extension (20) of the boat (10) and which communicates the information relative to the thrust force to a second electronic device (40) positioned on the boat (10), which is composed of a second Bluetooth or Wi-Fi circuit (43), a second accelerometer (44), and at least a second sensor (47) designed to measure a thrust force of the electric water-jet engine (11) of the boat (10); the second electronic device (30) is designed to receive and process the information sent from the first electronic device (30) and to control, on the basis of the above-mentioned information, the power of the electric water-jet engine (11) of

Abstract: Embodiments are disclosed of a standup paddle (SUP) board comprising a substantially rectangular shape in outline and having a length dimension that is a whole number multiple of its width dimension. A plurality of link members are disposed at spaced-apart locations along the periphery of the board's deck. Each link member can function, in a first configuration, as a handle for the board; and, in a second configuration, as a linkup for connecting the board in abutting relation to one or more other adjacently located, similarly configured standup paddle boards. With a plurality of such boards connected proximate one another in a desired configuration via such links, an extended upper surface is provided that can serve as a substantially stable platform upon which one or more persons can engage in desired activities.

Abstract: A foot pocket comprising a main body and a traction pad for attachment to the tail end of a surfboard deck. The main body provides a pocket for the surfer's foot so the surfer may push back or lift up the tail end of the surfboard with the rear foot while maintaining a secure rear foot point of contact with the surfboard. The traction pad material has a surface that is easy to grip with the surfers rear foot and is permanently affixed to the front side of the main body and extends forward onto the surfboard deck for the surfer to stand on while surfing. The foot pocket can be made with or without a cut-out for the surfers ankle. The foot pocket features a flat base for attachment to the deck of the surfboard by adhesive.

Abstract: An enhanced surfboard and surfboard traction pad comprising permanent or interchangeable and detachable bases and/or top pieces that extend up, over and behind the leash pin in a uniquely designed surfboard optimally shaped for mounting said traction pad, or a regular surfboard modified to fit said traction pad. Said traction pad can be configured to have a ramped face, and optionally a ramp to a vertical face and a ramp to a vertical and angled, curved or horizontal overhang that creates a pocket for the surfer's foot to push the tail of the surfboard back with the outside edge of the rear foot against the vertical face of the traction pad or lift the tail end of the surfboard up by pressing with the top of the rear foot against underside of said overhang for aid in executing aggressive turns and aerial manuevers.

Abstract: A foam product includes a foam core, a soft skin covering the foam core, and a base structure on which the foam core is disposed. The foam core of expanded beads has an outer surface on which some outermost beads of the expanded beads are exposed and bulging outward with different heights to form a bubbly texture. The foam skin has an inner surface attached to the outer surface of the foam core, and has at its inner surface a plurality of concave cavities each matedly surrounding a respective one of the bulging, outermost beads on the outer surface of the foam core.

Abstract: A wave riding hoard is provided herein that has a body including a top, a bottom, a right edge, a left edge, a front, a rear and a length defined from the front to the rear. The bottom of the body includes one or more steps. A first channel is defined at least partially between the one or more steps. The first channel extends along at least a portion of the length of the body. At least one of the one or more steps extends at least partially around the left edge or the right edge of the body.

Abstract: A hydrofoil watercraft, in particular, a hydrofoil board is described herein. The hydrofoil board may comprise one or more of a body, a hydrofoil assembly, and/or other components. The body may have one or more of a deck surface configured to support a rider, a bottom surface opposite the deck surface, and/or other surfaces and/or features. The body may comprise a fore portion having a planing surface forming part of the bottom surface. The body may have an aft portion having an aft bottom surface forming part of the bottom surface. The fore portion may be toward a front end of the board. The aft portion may be toward a rear end of the board. An aft cross-sectional thickness between the deck surface and the aft bottom surface may be less than a fore cross-sectional thickness between the deck surface and the planing surface.

Abstract: Measurement accuracy in sports is improved. A wrist terminal includes a measurement information acquiring unit, a reference atmospheric pressure setting unit, and a state determining unit. The reference atmospheric pressure setting unit sets a reference atmospheric pressure. The state determining unit determines that the wrist terminal is located over water when a difference between the reference atmospheric pressure and a current atmospheric pressure after starting sports is within a predetermined atmospheric pressure range and the wrist terminal is located under water when the difference is outside the predetermined atmospheric pressure range. The measurement information acquiring unit 51 performs predetermined measurement on the basis of the determination result from the state determining unit 54.

Abstract: An improved wooden surfboard and method of construction comprised of pre-cut layers of wood longitudinally arranged of predetermined thicknesses (502-512) stacked and bonded together following the shape of the surfboard. The longitudinal layers include slots (208) to slide and embed multiple transverse ribs (210) in perpendicular direction for joining the longitudinal layers together. The bonded longitudinal layers form a pre-shaped plank with the geometrical features of the surfboard without the need of carving and shaping the surfboard's geometry. A smooth finish is achieved after a light sanding of the pre-shaped plank. In some embodiments the longitudinal layers have predetermined perforations (202) to create air chambers (204) reducing the weight of the surfboard. Other embodiments are as described and shown.

Abstract: A device is proposed, increasing stability of a surfer on a surfboard. It includes an anchoring means connected to the surfboard, in turn, including a negative pressure chamber, a receiving chamber, its nozzle, and an outlet pipe. At least one surfer's foot is anchored by the anchoring means to the surfboard, when it's in motion, by a suction flow formed in water by the negative pressure chamber. The suction flow is conveyed via the pipe to the point where the foot contacts with the surfboard, so that the foot is adhered thereto by negative pressure. The device's first embodiment further includes a fin disposed on the underside rear part of the surfboard, while the anchoring means is disposed inside or on the fin. A second embodiment envisages the anchoring means disposed in a depression made in the underside. The depression is open at the surfboard's bottom, forming a channel.

Abstract: The invention relates to a movable fin assembly, which includes a housing attachable to an underside of a watercraft and a rotation and pivoting mechanism. The mechanism positioned inside the housing and movable about two axes of rotation. The mechanism further has a fin locating position, thereby a fin provided at the fin locating position is capable of moving about the two axes of rotation via the mechanism, such that the fin's toe angle and camber angle changes when moving through the water. The invention further extends to an interchangeable self-aligning fin and static fin kit which includes a rotation and pivoting mechanism and a static member shaped and dimensioned to correspond with an interior of the housing. The static member and the rotation and pivoting mechanism interchangeably receivable by the housing in order to selectively provide a dynamic or static fin on the underside of the watercraft.

Abstract: A retractable fin watercraft accessory that provides steering and tracking for a watercraft such as stand-up paddle boards. The retractable fin system gently retracts as it comes in contact with subsurface objects such as rocks, logs and such, allowing the watercraft to freely pass over the object. The system includes a sloped leading edge which can more easily slide past an obstacle. The retractable fin system simply attaches to the watercraft's existing fin mounting box and can be removed from the watercraft without altering the original state of the watercraft prior to being attached. No drilling, welding, gluing or other such custom fabrication is required. The system allows for quick interchangeability between the retractable fin and various rigid style fins, depending on the user's preferences.

Abstract: A board suitable for riding a wave is described. The board includes interconnected deck and bottom reinforcing zones.

Abstract: A rigid or inflatable stand up paddleboard (SUP) conversion kit to provide a stable recreational platform for fishing. diving, hunting, nature photography, birdwatching or other activity. A detachable frame positions a pair of pontoons rearward relative to the SUP to avoid interference with rowing. A rolling storage case stores activity accessories such as diving or fishing equipment. After securing the storage case to the SUP, the case serves as a storage seat. A rear canopy frame may be assembled onto the SUP in order to support a rear canopy to conceal the user; and a front canopy frame may assembled onto the SUP in order to provide additional concealment that may be used for a hunting dog. The various conversion kits are compact and self-contained, and can fit easily in the trunk of a car.

Abstract: A board-type watercraft is adapted for selective disassembly into a plurality of separate sections for ease of transport and storage. Preferably, a selection of differently configured nose and tail sections can be releasably connected to a universal middle section to create a wide variety of distinctive board styles. With the watercraft in its assembled state, adjacent sections are releasably secured together using compressive-type fastening elements, such as spring-biased latch mechanisms. Pairs of fastening elements are preferably arranged on the top and bottom surfaces of the board in substantial vertical alignment to limit torque between sections and thereby ensure adequate stiffness through each joint. In its disassembled state, the sections can be stacked into a highly compact configuration suitable for packaging within a container that is compliant with maximum size standards for conventional ground courier services.

Abstract: A personal riding board for aquatic sporting activities. The board includes multiple layers. At least two of the layers include a reinforcement member. The reinforcement members function together similar to a leaf spring to provide the board enhanced flexibility where needed while minimising the risk of breakage.

Abstract: A stand-up paddleboard (SUP) may be configured with a non-retentive binding system to secure a user's foot positioning. In one example, the binding system may include pockets formed from panels extending continuously along edges of the paddleboard, and straps to provide tension on the pockets, to reduce a likelihood of undesired sliding of the user's feet. The pockets of the binding system may allow the user to reposition the user's feet to multiple secured footholds within the binding system, thereby allowing the user's stance and balance to be maintained.

Abstract: An apparatus comprising a board such as a surfboard or body board is disclosed. The board comprises a top deck and a bottom. The board comprises a forward end and a rear end. The distance between the forward end and the rear end defines a length of the board. The board further comprises rails provided at side of the board, which defines a width of the board. The rails are provided in a step-like structure to reduce thickness of the rails coming in contact with wave water wall. The board further comprises a cut-section provided at bottom along longitudinal axis of the board to reduce resistance against surface of the water when in motion. The board further comprises a set of fins provided at bottom near the rear end. Further, the board comprises at least one stringer at its center to strengthen the board, reduce deformation, and add stiffness to the board.

Abstract: A universal attachment system wherein harnesses are provided which can be installed on a broad variety of surfboards, other boards and light watercrafts not requiring any permanent fixtures or permanent special features on said boards and are suitable for the attachment under-board of a motor module. The attachment straps are equipped with tightening devices for example ratchets and tension measuring means such as for example piezo-luminescent coating. Either the whole harness or the motor module alone are provided with the quick release means either mechanical or magnetic. The detached motor module is equipped with a capability of homing in to the radio control transmitter or traveling to a designated GPS location.

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: An Adjustable Fin Assembly for Watercraft. The modular assembly should be design to be incorporated into a surfboard or other watercraft during fabrication of the craft. Each fin assembly is designed to allow for the watercraft user or fabricator to attach a conventional fin element to it. The fin assembly enables the user to adjust the fin position longitudinally as well as laterally relative to the watercraft. The housings each include a set screw or other component that can be loosened and tightened by the user in order to reposition the fin and then fix it in the new position. The conventional fin attaches to a sliding plate that is housed within a housing, wherein the movement of the sliding plate relative to the housing is prevented by engagement with the set screw.

Abstract: The present invention includes a surfboard comprising a laminated frame extending along the side rails of the surfboard, the laminated frame comprising three or more layers of laminates, and wherein the laminated frame has been formed to the shape of the rocker of the surfboard. In various exemplary embodiments, the laminated frame may have one or more lateral members extending between opposing sides of the laminated frame, wherein such lateral members may be circular in cross-section, and may include one or more supports connecting the lateral members to the top surface of the surfboard. In various exemplary embodiments, two or more layers of laminates may form an internal structure extending laterally across the laminated frame from one side to the other.

Abstract: This invention is directed toward a surfboard made from at least two different types of foam and laminating methods. The general invention has a central core, preferably of EPS foam, and two outside panels—located either on the sides, or rails, of the blank, or above and below the central core. In a preferred embodiment, the panels are made from PU foam, and the panels are attached to the central core through a laminating substrate, which can be another type of foam or copolymer, such as TPU, or a harder material such as plastic or wood. The invention produces a blank that can be shaped into a surfboard that is both strong and flexible.

Abstract: A fin box is provided for detachably attaching a fin to a surfboard. The surfboard has a nose and a tail at opposite ends. The fin has a groove base with one or more pins. The fin box includes one or more inner walls. The inner walls have (i) a hollow base with a width that is at least as great as a width of the groove base and a length that is at least as great as a length of the groove base, (ii) one or more recess parts disposed at locations that correspond to the locations of the pins of the fin, the recess parts extending in a direction that is substantially perpendicular to a length of the fin box, and (iii) one or more ditch parts that extend from the recess parts, the ditch parts extending in a direction that is substantially parallel to the length of the fin box and toward the tail of the surfboard.

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.