Abstract: The invention relates to a boat having a longitudinal direction, including a first bow, two inflatable lateral tubes extending according to the longitudinal direction of the boat, and an inflatable base arranged between the two inflatable lateral tubes. The inflatable base further comprises a floor portion, and at least one first pair of end portions extending from one of the two longitudinal ends of the floor portion. A fold line is formed between the floor portion and each of the end portions of the first pair, and when the inflatable base is in its inflated state, each end portion is in a position folded around the corresponding fold line to form the first bow of the boat.

Abstract: A watercraft has a fan propeller, a motor coupled to the fan propeller, an inflatable hull including a first inflatable member and a second inflatable member, and a platform, which is positioned between the first and second inflatable members and coupled to a base of the fan propeller. The motor powers the fan propeller and thereby propels the inflatable hull in a forward direction. The watercraft is suitable for use in varying water environments including white water, open sea water, ice, snow, and shallow water.

Abstract: A gas-containing unit and a water vehicle including the same are disclosed. The gas-containing unit includes a pair of reinforcement boards that are positioned in line with each other, a tube member that is positioned between the reinforcement boards and is capable of gas injection, and a support frame that is furnished along the outer circumference of the pair of reinforcement boards to connect the pair of reinforcement boards to each other. It is possible to prevent damage such as scratching and tearing of a soft tube material due to external shock, and to improve overall structural strength.

Abstract: The present invention relates to a portable boat with catamaran configuration. The boat basically consists of two inflatable floats joined by two connecting bars with plates at their ends for fastening the connecting bars to the floats. A rigid platform can be assembled between the two connecting bars, forming a deck for the occupant. The present invention allows the occupant to remain standing on the rigid platform while using a paddle to propel the boat. The lateral floats provide greater stability, making it easier for the occupant to keep his balance. Removable fins can be mounted on the rear underside of each float to help keep a straight path and improve performance (decreasing zigzags, and allowing a greater number of paddle strokes before having to change sides). The boat exhibits high hydrodynamic efficiency and can be disassembled so as to occupy a small volume, making it easy to transport and store.

Abstract: An inflatable hull including at least one air casing that has two walls placed one over the other. The walls each include a fabric sheet, are connected therebetween by a plurality of connecting wires distributed over the entire surface of the sheets while forming a structure suitable for being inflated to a pressure capable of rigidifying the structure, and are capable of ensuring the buoyancy of the hull separately from any reported buoyancy element. The casing has a first transversely cross-sectional curvature and a second longitudinally cross-sectional curvature that is present over at least the front portion of the casing. One of the walls corresponds to the inside of the curvature, and the other of the walls corresponds to the outside of the curvature. The casing has at least one clip set up such as to form a stem.

Abstract: An inflatable shallow draft fishing boat having a removable, inflatable paddleboard floor that provides stable flotation for at least two standing adults, the boat also including an adjustable, detachable rowing frame. The boat can be maneuvered and propelled by oars, a push pole or a small motor. The detachable rowing frame may hold a cooler seat and may also serve as an elevated push poling platform. The rowing frame allows the rower to switch his rowing position from facing the stern (for best speed) or face the bow (for better visibility when searching for fish). The paddleboard floor may be held in place by frictional engagement when the boat and the paddleboard are inflated; alternatively, the paddleboard may be removed and function independently as a stand-up paddleboard that can be used for fishing, swimming, or similar recreational water sports.

Abstract: A mainframe for a float structure is described. The mainframe is detachably connectable to the dorsal surface of the float structure inflatables and comprises: a plurality of segmented and connectable cross-structure support members transversely attached to a plurality of segmented and connected longitudinal connector members via a connector member. Each of the longitudinal members and crossmembers may be made up of a plurality of detachable sections.

Abstract: An inflatable watercraft is provided with multiple reinforced panels that are configured to form a center hull having a V-form. The center hull supports a floor that is coupled to a U-form collar. The panels also form a pair of outer side hulls respectively disposed on opposite sides of the center hull and which define a tunnel between the center hull and each of the outer side hulls.

Abstract: A personal watercraft has a saddle with a seating surface, first and second opposite sides, and front and back ends. A pair of footing surfaces proceed from proximate lower edges of first and second opposite sides. A front recess is defined in the front end and has upper and lower portions that extend further away from the saddle than a medial portion. A back recess is defined in the back end and has upper and lower portions that extend further away from the saddle than a medial portion. The front and back recesses are configured to secure an inflatable body that substantially surrounds the saddle with the footing surfaces at least partially exposed.

Abstract: A semi-rigid boat, includes a rigid hull (11) provided, at the bridge thereof (6), with two types of holders for the inflatable tube(s): a gutter-shaped holder for receiving, at the bow and/or at the stern, a section (13, 14) of tube (12) having a circular cross-section; and a planking wall-shaped holder (16) that extends between the bow and the stern, which is provided so as to engage with an inflatable section-shaped structure (15) having a D-shaped cross-section that extends longitudinally between the sections (13, 14). The section (15) of inflatable tube having a D-shaped cross-section is attached to the bottom portion and to the top portion of the planking wall (16).

Abstract: An inflatable stability and fender system including high pressure drop stitch D-shaped tubes mounted on a hard sided monohull of a boat or on the side of a dock by extrusions, thru bolting and boat ropes for sealing engagement with the monohull of the boat or the dock.

Abstract: An inflatable boat includes a bottom structure made up of two or more inflated bottom tubes. Each bottom tube extends along the longitudinal axis of the boat from the stern end of the boat to the bow end of the boat. The bottom tubes are arranged side-by-side along at least a portion of their length, and when in an inflated condition, may directly provide a portion of the hull surface for the boat or at least support further components which provide portions of the hull surface. A front end of preferably each bottom tube is raised vertically relative to a back end of the respective bottom tube at the stern of the boat, and the relative size and/or position of the bottom tubes may be selected to define a desirable hull profile for the boat such as a V-shaped hull profile.

Abstract: The present invention relates to an inflating device that can be used for inflating an inflatable boat having two sides and a bottom, each having an independent air chamber, the device including a sealed body with an enclosure having at least three communication openings, each of the openings being connected to another opening by a passage for the circulation of a flow of air, and in particular a first opening intended to be connected to a first air supply means intended to supply air to the air chamber of the first side fender of the inflatable boat, a second opening intended to be connected to a second air supply means intended to supply air to the air chamber of the second side fender of the inflatable boat, a third opening intended to be connected to an air pump, and means for shutting off the passage between the first opening and the second opening, the means being disposed in the enclosure and being able to move between a first position, called the open position, in which the passage between the first o

Abstract: A floatable workstation including an inflatable base assembly including optional partitions disposed internally within an air receiving cavity of the tube to form one or more inflatable chambers, each chamber including a valve for inflating the chambers. The series of deck boards assemblies are provided having a non-skid upper surface and a dense hook and loop tape interface material on a bottom surface. A deck attachment textured surface is provided upon an upper surface of the inflatable base assembly for removably securing the series of deck boards. The deck boards can cover the upper surface of the inflatable base assembly and/or span between adjacently positioned inflatable base assemblies to provide an enlarged work surface. Adjacent inflatable base assemblies can be tethered to one-another using a carabineer or similar to fasten corner fastening members of each of the adjacently positioned inflatable base assemblies.

Abstract: A collapsible amphibious hunting blind includes an inflatable camouflaged bladder including a waterproof floor and an upper mesh canopy structure to stealthily conceal a user inside during a water fowl hunting or observing activity. The inflatable blind provides an inner space capable of containing a slightly reclined and seated user being positioned between raised side wall portions allowing a user to float on a body of water. The blind includes an air pump for inflating the blind prior to use. The blind further includes a pair of wheels along a bottom surface for transportation across a ground surface when in an inflated state and also includes a carrying bag for transporting in a deflated and folded state.

Abstract: An inflatable stand up paddleboard having a top surface for supporting a user and a bottom surface for residing on water. The inflatable stand up paddleboard being characterized as having a front end and back end and a longitudinal axis passing between the front and back ends. The inflatable stand up paddleboard is configured to receive at least one beam for stiffening the inflatable stand up paddleboard positioned substantially parallel to the longitudinal axis.

Abstract: Collapsible boats with foldable rigid transoms are disclosed. A collapsible boat includes a collapsible hull formed from a plurality of panels that extend from a first end to a second end of the collapsible/inflatable boat. Each of the panels is connected with at least one the other panels. The collapsible hull is configurable between a collapsed configuration and an expanded configuration. A folding rigid transom is used to constrain at least two rear margins of the panels when the hull is in the expanded configuration. The folding rigid transom and seats remain attached to the hull when the hull is in the collapsed configuration. A collapsible boat can have one or more interior members that are inflatable to support the collapsible hull in the expanded configuration.

Abstract: Collapsible boats with foldable rigid transoms are disclosed. A collapsible boat includes a collapsible hull formed from a plurality of panels that extend from a first end to a second end of the collapsible/inflatable boat. Each of the panels is connected with at least one the other panels. The collapsible hull is configurable between a collapsed configuration and an expanded configuration. A folding rigid transom is used to constrain at least two rear margins of the panels when the hull is in the expanded configuration. The folding rigid transom and seats remain attached to the hull when the hull is in the collapsed configuration. A collapsible boat can have one or more interior members that are inflatable to support the collapsible hull in the expanded configuration.

Abstract: Disclosed is an inflatable boat having a self-inflation system which advantageously makes it possible to shorten the air injection time, thus quickly taking a proper measure under an emergency situation, in such a manner that a speed tube or an air passage tube disposed in the boat's body and an air distribution system each help inject compressed air into a plurality of compartments forming the boat's body simultaneously at a designated pressure.

Abstract: The cover for inflatable tube includes a hollow, toroidal member made from a durable, puncture-resistant, abrasion-resistant fabric, the toroidal member being adapted for covering an inflatable float tube. The cover may also include a plurality of spaced, elongate, flexible eyelets are formed about a periphery of the cover portion on the outer surface and are arranged to extend radially about the periphery of the cover. The cover may further include a flat bottom member the extends across the annular opening defined by the toroidal member, providing a flat surface so that the tube may be used for sledding on snow-covered surfaces, or to prevent swimmers from extending their torsos through the tube, thereby permitting the swimmers to sit on the bottom sheet instead of dangling their feet below the tube, presenting the risk that the swimmer's foot may be entrapped by underwater obstructions in a river or other shallow water.

Abstract: A personal watercraft has a saddle with a seating surface, first and second opposite sides, and front and back ends. A pair of footing surfaces proceed from proximate lower edges of first and second opposite sides. A front recess is defined in the front end and has upper and lower portions that extend further away from the saddle than a medial portion. A back recess is defined in the back end and has upper and lower portions that extend further away from the saddle than a medial portion. The front and back recesses are configured to secure an inflatable body that substantially surrounds the saddle with the footing surfaces at least partially exposed.

Abstract: An inflatable kayak capable of conversion, from a kayak configuration to a backpack configuration utilizing existing kayak components to form the backpack for transport and storage of the kayak.

Abstract: A coverless towable is provided having a towing strap system that encircles the towable structure and comprises retention loops welded to the structure sides to retain a nylon webbing strap which is threaded through retention loops around circumference of towable to spread out the pull load.

Abstract: The present invention provides a conversion assembly for use in conjunction with a personal watercraft (PWC) which increases the buoyancy and stability of a PWC while protecting the motorist from the elements, wherein, the conversion assembly includes a collar assembly having a frame member and a buoyant foam reinforcement member operably coupled to an inflatable tube assembly for creating a personal water cruiser out of an existing PWC.

Abstract: A “float boat” with a unitary twin pontoon hull comprising a pair of inflatable pontoons, each shaped, when inflated to have a fully curved rocker bottom surface and a substantially straight upper surface and with pontoons being interconnected at rigid ends by an inflatable transom that together with the pontoons forms a raised V-hull stern; a platform extending between the pontoons and adjacent to the transom and at least one foot rest for a user sitting on the platform.

Abstract: A multi-purpose boat has a two angle V hull with a rounded fore-aft profile and slightly convex deck. The hull has steeply angled edge portions and shallowly angled center portions. The edge portions are sufficiently sloped away from vertical to allow the boat to be lifted and not pushed by waves. The rounded fore-aft profile allows the boat to slide over waves, especially during a beach entry. The boat includes a keel having a horizontal base and separating downward from the hull at the fore and aft of the boat to resist yawing. The dry weight of the boat is about 25 pounds with a foam core with a resin coating and the keel is preferably hollow and includes ports to allow water to enter the keel to add about 25 pounds after entering the water. Approximately four inches of freeboard is provided separating riders from cold water and predators.

Abstract: A semi-rigid boat, includes a rigid hull (11) provided, at the bridge thereof (6), with two types of holders for the inflatable tube(s): a gutter-shaped holder for receiving, at the bow and/or at the stern, a section (13, 14) of tube (12) having a circular cross-section; and a planking wall-shaped holder (16) that extends between the bow and the stern, which is provided so as to engage with an inflatable section-shaped structure (15) having a D-shaped cross-section that extends longitudinally between the sections (13, 14). The section (15) of inflatable tube having a D-shaped cross-section is attached to the bottom portion and to the top portion of the planking wall (16).

Abstract: Collapsible/inflatable boats are disclosed. A collapsible/inflatable boat includes a collapsible hull formed from a plurality of panels that extend from a first end to a second end of the collapsible/inflatable boat. Each of the panels is connected with at least one the other panels. The collapsible hull is configurable between a collapsed configuration and an expanded configuration. A collapsible/inflatable boat can have one or more interior members that are inflatable to support the collapsible hull in the expanded configuration. A collapsible/inflatable boat can have one or more removable solid seats that when installed support the collapsible hull in the expanded configuration. A collapsible/inflatable boat can have an inflatable exterior member connected with the hull such that the exterior member, when inflated, extends around at least a portion of a perimeter of the hull when the hull is in the expanded configuration.

Abstract: The improvements of the present invention provide multipurpose and multi-functional improvements that enhance the functional utility of water vehicles. The combination includes connecting means which allow adaptation of a platforms, storage, and seating. An improved motor mount permits a motor to be protectively stowed until a hinge is actuated to rotate the motor 180 degrees for operation. The improvements also provide motor controls, an anchor and motor controls attached to a seat platform. A shelter hood assembly attaches in a selectable, collapsible manner giving an operator use and appearance configuration options, allowing the assembled hood to act as a barrier against weather elements in addition to supplying functional color components including wildlife decoys, camouflage, safety markings, diving insignia, or other aesthetic designs or coloring.

Abstract: A manually retractable sportsman's blind releasably attached to a support provides a flexible camouflaged body having a mesh fabric window and supported on a frame comprised of plural elongate flexibly resilient stays pivotally attached to one another at proximate end portions to support the flexible camouflaged body and mesh fabric window in a hemispherical shape.

Abstract: A movable floating object includes a floatable body and water pumps mounted on the left and right sides of the body respectively. Intake tubes are coupled to the pumps through intake valves respectively. Discharge tubes are coupled to the pumps respectively. Exertion of force on the pumps forces water out of the pumps and through the discharge tubes, and release of the force creates a vacuum inside the pumps that sucks water into the pumps through the intake tubes and the intake valves respectively. The floatable body moves forwards when same force applied to the pumps and turns when the forces apply to the pumps are different.

Abstract: The surf and rodeo ball of the present application comprises a lower semi spherical body having an outer surface sufficient to define a volume for displacing enough water to support the apparatus itself and one or more persons riding it. The surf and rodeo ball of the present application also comprises a higher portion comprising a rope, a rope hook ring, a rope hook, for each of the hands of the user and a central elevated structure to accommodate and support the user's body. In addition to providing the amusement and exercise device, the ball has uses as a floating safety device.

Abstract: An inflatable boat including at least one inflatable tube forming first and second pontoons, the first and second pontoons meeting at a front of the boat to form a stem; a floor constructed of a flexible non-inflated fabric material spanning the area between the first and second pontoons and attached to the bottom of the first and second pontoons; and an inflatable keel formed of an inflatable high-pressure drop stitch material and secured to the bottom of the floor.

Abstract: Disclosed is an inflatable boat having a self-inflation system which advantageously makes it possible to shorten the air injection time, thus quickly taking a proper measure under an emergency situation, in such a manner that a speed tube or an air passage tube disposed in the boat's body and an air distribution system each help inject compressed air into a plurality of compartments forming the boat's body simultaneously at a designated pressure.

Abstract: A movable floating object includes a floatable body and water pumps mounted on the left and right sides of the body respectively. Intake tubes are coupled to the pumps through intake valves respectively. Discharge tubes are coupled to the pumps respectively. Exertion of force on the pumps forces water out of the pumps and through the discharge tubes, and release of the force creates a vacuum inside the pumps that sucks water into the pumps through the intake tubes and the intake valves respectively. The floatable body moves forwards when same force applied to the pumps and turns when the forces apply to the pumps are different.

Abstract: A child's canvas floatation device for use in an ocean, lake, or pool environment comprising a seat system for the child as well as a tether line for connection to a parent's or care provider's wrist is herein disclosed. The flotation device is toroidal being approximately two (2) to three (3) feet in diameter and provided with an inflation port and a series of grasping handles. The device is also provided with a textile covering over most of the entire tube area. The cover is wrapped back upon itself and covers the interior of the inner tube. The center is then provided with a pair of leg holes in which a child can insert his or her legs and be provided with a seat. As such, the child is not in danger of falling through the inner tube as is the case with conventional inner tubes. Additionally, the device is provided with an attached tether line approximately six (6) feet long that attaches to the parent's or care provider's wrist.

Abstract: A collapsible amphibious hunting blind includes an inflatable camouflaged bladder including a waterproof floor and an upper mesh canopy structure to stealthily conceal a user inside during a water fowl hunting or observing activity. The inflatable blind provides an inner space capable of containing a slightly reclined and seated user being positioned between raised side wall portions allowing a user to float on a body of water. The blind includes an air pump for inflating the blind prior to use. The blind further includes a pair of wheels along a bottom surface for transportation across a ground surface when in an inflated state and also includes a carrying bag for transporting in a deflated and folded state.

Abstract: A combination boat and travel trailer system having a main body portion and a bow portion. The bow portion movable between a raised position relative to the main body portion to facilitate towing of the boat and travel trailer and a lowered position to facilitate in-water use as a boat.

Abstract: A hybrid inflatable kayak is configured to rival the handling and speed of skin-on-frame or hard-shell kayaks, while simplifying the assembly and disassembly process. The hybrid inflatable kayak includes an internal frame assembly that cooperates with inflatable bladders and inflatable thwarts giving the kayak an improved watershed capacity and also an improved combination of weight, stability, speed, structural strength, and portability. The internal frame assembly includes a bow rib, a stern rib, and a number of frame members that attach together and extend lengthwise from bow to stern. Front and rear thwarts are inflatable and urge against the frame members and side bladders to put the frame members in tension, make the outer cover sufficiently taut, and provide a faster and more structurally robust design.

Abstract: A buoyancy lift system having an inflatable bladder with a tether stowed inside a canister secured to a vessel. A sealing member is slidably received within canister and secures to the inflatable bladder. Pressurized gas forces the sealing member and bladder outwardly of the canister. A stop prevents the sealing member from escaping the canister such that the sealing member creates a seal between itself and the canister at an outboard end of the canister. Pressurized gas is forced through a channel in the sealing member into the bladder to increase the displacement of a vessel.

Abstract: A stiffening spine for use in a selectively inflatable kayak. Inflatable kayaks are characterized as having an elongated pneumatically inflatable peripheral tubes which, when inflated, define a passenger compartment and relatively narrow bow and stem sections. A flexible cover extends between and at least partially encases the elongated pneumatically inflatable peripheral tubes to provide a floor for the kayak. A spine for stiffening the inflatable kayak is provided in the form of a relatively rigid longitudinal member and end caps fitted to both ends thereof. The longitudinal member is sized to be removably inserted within the flexible cover so that when installed, the end caps are positioned proximate the bow and stem sections of the inflatable kayak.

Abstract: An air inflatable watercraft, having a cockpit with a bottom area forming part of the cockpit having a through opening therein adapted to receive a human operated propulsion mechanism which can be operated from the cockpit to propel the watercraft.

Abstract: An inflatable boat including at least one inflatable tube forming first and second pontoons, the first and second pontoons meeting at a front of the boat to form a stem; a floor constructed of a flexible non-inflated fabric material spanning the area between the first and second pontoons and attached to the bottom of the first and second pontoons; and an inflatable keel formed of an inflatable high-pressure drop stitch material and secured to the bottom of the floor.

Abstract: Collapsible boats with foldable rigid transoms are disclosed. A collapsible boat includes a collapsible hull formed from a plurality of panels that extend from a first end to a second end of the collapsible/inflatable boat. Each of the panels is connected with at least one the other panels. The collapsible hull is configurable between a collapsed configuration and an expanded configuration. A folding rigid transom is used to constrain at least two rear margins of the panels when the hull is in the expanded configuration. The folding rigid transom and seats remain attached to the hull when the hull is in the collapsed configuration. A collapsible boat can have one or more interior members that are inflatable to support the collapsible hull in the expanded configuration.

Abstract: A water sport training device is disclosed comprising, in one embodiment, a raft having a distal nose portion and a proximal rear portion. A relatively rigid platform is positioned within the raft and configured to provide a stable surface for the person during use of the device. A tow rope attachment means is secured to the raft for selectively towing the device over a body of water, the attachment means comprising at least one tow rope attachment point located on the nose portion of the raft, below a nose portion mid-plane. The device is configured such that a back half of the device has a center buoyancy sufficient for providing a stable surface to support the weight of a person while floating on water both at standstill and as being pulled through the water as by a boat.

Abstract: An inflatable floor for an inflatable boat acts as a keel using three inflatable floor layers. The uppermost first inflatable floor layer has a planar cross section. The second inflatable floor layer is located under the first inflatable floor layer. The third inflatable floor layer is located under the second inflatable floor layer. A plurality of threads are provided, in an X- or I-like configuration, inside air chambers of the three inflatable floor layers. The threads link the upper and lower walls of the air chamber of each respective inflatable floor layer to each other. The inflatable floor has increased buoyancy and stiffness, is easy to fold and transport and is easy and economical to repair or replace and thus is easily applicable to a large military or rescue inflatable boat.

Abstract: An inflatable rubber boat includes a flat bottom fabric member formed of a fabric having a front V-cut and two lateral sides, the two border edges of the front V-cut being seamed together to form a forwardly upwardly curved front end edge of the flat bottom fabric member, an elongated main inflatable airbag member fastened to the forwardly upwardly curved front end edge and two lateral sides of the flat bottom fabric member, a floorboard member having a body fitting over the flat bottom fabric member and a pointed arch-shaped rib obliquely upwardly extended from the front side of the body and fastened to the contained angle defined between the upwardly curved front end edge of the flat bottom fabric member and the elongated main inflatable airbag member, and a supplementary inflatable airbag member longitudinally set between the floorboard member and the flat bottom fabric member and inflated to stretch the flat bottom fabric member into shape.

Abstract: A gas-containing unit and a water vehicle including the same are disclosed. The gas-containing unit includes a pair of reinforcement boards that are positioned in line with each other, a tube member that is positioned between the reinforcement boards and is capable of gas injection, and a support frame that is furnished along the outer circumference of the pair of reinforcement boards to connect the pair of reinforcement boards to each other. It is possible to prevent damage such as scratching and tearing of a soft tube material due to external shock, and to improve overall structural strength.

Abstract: An airborne tugboat with three hulls (4): an underbody (4), surface body (5) and inflatable body (6). When stationed on shore the inflatable body is not activated, but is folded up against the surface body. Gas turbine (1) drives the propeller (3) via the reduction gear (2). The rotatable ring (8) round the propeller makes the airborne tugboat maneuverable, and when the disabled ship is towed, it will be able to influence towing direction without the risk of the airborne tugboat heeling over. By its design the airborne tugboat should be regarded as a slow-moving towing boat where the speed is low but the power in the towing direction is great. The design is characterised by low weight in all machinery and equipment. The amount of fuel restricts the operating time, but the helicopter and airborne tugboat, for example, use the same fuel, thus providing the advantage that the helicopter can refuel the airborne tugboat before it returns to base.

Abstract: An inflatable floor for an inflatable boat acts as a keel using three inflatable floor layers. The uppermost first inflatable floor layer has a planar cross section. The second inflatable floor layer is located under the first inflatable floor layer. The third inflatable floor layer is located under the second inflatable floor layer. A plurality of threads are provided, in an X- or I-like configuration, inside air chambers of the three inflatable floor layers. The threads link the upper and lower walls of the air chamber of each respective inflatable floor layer to each other. The inflatable floor has increased buoyancy and stiffness, is easy to fold and transport and is easy and economical to repair or replace and thus is easily applicable to a large military or rescue inflatable boat.