Abstract: The invention relates to an arrangement (1) an arrangement for a sail (2) enabling to form to be varied and comprising battens (4—4) extending between the fore-leech (9) and the after-leech (10). According to the invention, the form of the battens (4—4) is so arranged as to vary depending on the wind and the desired form of the sail. This can be done as the sail is divided and built of several with between the segment is located as battens effecting connectable devices which are elastic across the connection device's length extension.

Abstract: The aerial performance characteristics of a performer using a water sport implement such as a wakeboard is enhanced by a towing apparatus which includes vertical supports rigidly attached starboard and port side gunwales of the vessel at a location generally outboard an operator station. A frame including rigid U-shaped bridging supports transversely extends across the beam of the vessel. The frame is pivotally fitted to a forward portion of the vertical supports for rotation from an operating position to a stored position on the deck of the vessel. The U-shaped bridging supports extend substantially above the level of the operator station. One of the U-shaped bridging supports is readily removably attached to the vertical support. A ball assembly is carried by detachable ends of the frame, while a socket assembly is carried by the vertical support. A shaft extends through the socket and has one end threaded for engaging a threaded bore of the ball.

Abstract: A hydro-alternator for attachment to the outboard motor on a bass fishing boat. The hydro-alternator generates electrical power for charging of batteries on the boat. The alternator charges the batteries while the boat is being propelled by its large outboard motor. The alternator is designed to provide high power, high current, and low drag force. To achieve this, it has a compact design in order to project a small profile. It also turns at very high rotational speeds in order to achieve adequately high power and current output.

Abstract: An improved waterjet propulsor that uses differential static pressure from the water flowing through and around the propulsor to provide additional thrust via internal and external vanes. Uniform water velocity is also created by the vanes within the propulsor. A boat trimming system is incorporated as part of the waterjet discharge nozzle.

Abstract: A rescue ramp is provided having a dual lobed, hinged inflatable ramp having two pairs of spaced inflatable tubes and a flexible floor mounted between each and connecting the tubes. A rope ladder is mounted to the floors of the lobes.

Abstract: Support base for supporting accessories on the flexible wall of an inflatable body and an pneumatic boat fitted therewith. A mounting base (10) intended for the fixing of an accessory onto the flexible wall of an inflatable body, such as an inflatable buoyancy fender of an inflatable boat, characterized in that it includes a stack (11) of several layers of flexible material fixed one to the other and passed through by at least one fitting (16) appropriate to the fixing of the aforesaid accessory, the aforesaid mounting base being fixable to the inflatable body flexible wall, the number of layers of the stack being determined so that the thickness of the stack corresponds approximately to the height of an anchoring part of the fitting.

Abstract: A water sport device for supporting a seated human rider while the rider and the device are towed behind a powered water craft, including an elongate board to which a seat and foot holder are secured, an elongate hydrofoil extending downward from the board and a planing blade secured to the hydrofoil generally parallel to the board so that the planing blade provides essentially no lift when the board is horizontal. The seat is secured to the board by a shock absorbing means to cushion the impact forces on the rider. The positioning of the seat and the planing blades at the rear of the board, the use of a single vertical hydrofoil, the size of the planing blade and the positioning of the foot holders at least two feet in front of the seat provides a water sports device which is relatively easy to ride, while at the same time being highly maneuverable and capable of high jumps.

Abstract: A mooring assembly for securing a boat to a waterfront structure such as the surface of a dock has a pair of elongate mooring arms each having a pivot end pivotally coupled to the waterfront structure in horizontally spaced-apart relationship, and each having a mooring end remote from the pivot end, that is displaceable toward and away from the surface of the water as the arm is pivoted about the pivot end. At the mooring end of each mooring arm, a mooring pin extends from the arm in a direction that is generally perpendicular to the longitudinal axis of the arm, so that as the mooring end is displaced toward the water when the arm is pivoted about the coupling to the waterfront structure, the mooring pin can be inserted into a suitably dimensioned aperture in a mooring bracket mounted on the surface of a boat.

Abstract: A life jacket includes a float member and at least a cloth layer adhered on the float member. The float member is made of a floatable material, having a head hole in an intermediate lateral portion, a front float portion, a rear float portion, and a shoulder portion between the front and the rear float portion. The cloth layer is adhered or fused on the front surface and/or the rear surface of the float member to increase the structural strength of the life jacket. The front and the rear float portion have a plurality of band holes for a strap band to pass through to bind them on the body of a user. The rear float portion has plural holes spaced apart to reduce its boyancy. The float member with the head hole, the shoulder portion, the band holes and the holes in the rear float portion are formed by a molding pressing process to reduce the cost of the life jacket.

Abstract: An outboard motor includes an engine holder, an engine installed above the engine holder, an intake apparatus disposed on one side of the engine, and an electric equipment box and an exhaust apparatus both disposed on another side of the engine. The intake apparatus comprises a throttle body installed in a front portion of the engine, a silencer operatively connected to an upstream side of the throttle body, a surge tank disposed on one side of the engine, and an intake manifold operatively connected to the surge tank. The silencer extends around a front side of the engine towards the exhaust apparatus. The silencer is provided with an upstream end portion to which an intake port is formed to open rearward. The upstream end portion may be fixed to a wall portion of the electric equipment box and the upstream end portion of the silencer has a lower surface to which an intake port is formed so that it opens downward.

Abstract: A marine vessel having backup power storage in the event of primary power source failure. The invention applies to different marine vessels and is particularly suited to vessels used in marine seismic operations. A rotating mass energy storage provides stored energy which can be distributed to the vessel following primary power source failure. A pulsed generator charges the energy storage means, and the pulsed generator can comprise a homopolar generator or a compensated pulsed alternator.

Abstract: The present invention relates to a bumper device for boats, which is extremely simple to use. The device comprises inflatable bodies, which are associated with the peripheral walls of the boat, and means for inflation-deflation of the inflatable bodies. The means for inflation-deflation can be activated by command, for transition of the inflatable bodies from a condition of rest, in which they are deflated, to a condition of work, in which they are inflated, and project from the peripheral walls of the boat, in order to protect the peripheral walls during mooring manoeuvres.

Abstract: An inflatable flag buoy for divers including a buoyant seat and a flag body in the form of two air chambers separated by a transparent interface. The buoyant seat is further divided into an upper air chamber and a lower water chamber that are not communicable with one another. Water filled in the water chamber always keeps the whole flag buoy in an upright position while air filled in the air chamber always keeps the flag buoy afloat on a water surface. A flashlight may be held in a space below said transparent interface and surrounded by said buoyant seat. The flag body includes communicable post portion and flag portion that is centered at a top of the post portion. Light given out by the flashlight passes through the transparent interface and the post portion to project onto and lighten the flag portion to produce good warning effect in the night. Pockets and recesses are provided on the post portion and the buoyant seat for conveniently holding miscellaneous articles, beverage bottles, etc.

Abstract: A hydraulic system for the control of boats, ships and crafts in general that comproses nozzles (1, 2) opposed and the end of the stem, having a Venturi tube throttling (8) or an internal diameter reduced by means of flanges (10), so as to be able to determine, following to the outlet of the fluid under pressure, the movement by reaction of the front part of the boat (N) and therefore to perform immediate leftward or rightward curvings according to the nozzle used, and/or corresponding nozzles (3, 4), placed nearby the stern and with similar background function, while the operating the hydraulic reaction of both nozzles placed on the same side determines the parallel movement on the whole craft, for moming alongside to quays or for performing other maneuvers.

Abstract: A safety bracket for a vehicle used on a monorail having a top and bottom is disclosed. The vehicle includes a trolley that engages the monorail and propels the vehicle along the monorail. A load portion is attached to the trolley. The load portion can perform predetermined tasks. The safety bracket is connected to the vehicle between the trolley and the load portion. The safety bracket fully supports the vehicle on the monorail when the trolley separates from the monorail. The safety bracket is adapted to move with the trolley and the load portion. The safety bracket includes an attachment piece attached to the vehicle and positioned between the trolley and the load portion. An arm piece is attached to the attachment piece and extends over and above the top of the monorail. The arm piece has an hook section that extends a predetermined distance below the top of the monorail.

Abstract: An improved plough anchor is provided, having an elongate shank and a plough body, the plough body having provided therein a neck portion pivotally attached to the remainder thereof and through which the elongate shank is connected thereto, the axis described by the pivotal connection of the neck portion and remainder of the plough body being tilted forward of vertical, such that upon rotation of the elongate shank with respect to the plough body the elongate shank is at its highest when not orientated along an axis described by the plough body.

Abstract: A transport system includes a dry dock mounted on an air cushion platform portage a ship overland. The system raises the ship from one body of water, hauls it across different surfaces, and launches it in another body of water. Ships and other water borne vessels can be portaged on air cushions across land, marsh, bog, or other impediments to navigable waters, or barge-like work platforms can be taken to work sites on water, swamps or tundra and retrieved after completion of the task. Transport system and ships can bypass canals and locks if these become inoperable, or the canals and locks can be circumvented if political conflicts deny their access.

Abstract: A mounting connector for suspending articles such as fenders from the life lines and life rails in boats provides a secure attachment while enabling rapid disengagement or adjustment in the position of the fender. The mounting connector includes a hook arrangement which hooks onto the life line or life rail and includes a blocker which can be inserted into the hook to prevent accidental disengagement. The fender line passes through two closely spaced parallel holes in the body portion of the connector and can be readily adjusted lengthwise relative to these holes when the connector is moved to a horizontal position, but which bind with such holes when in normal suspended condition.

Abstract: A combination foldable camper/boat/trailer system features flexibility, ease of storage, and ease of assembly. The boat may be tapered so that it forms a more stabilized surface in the water and can prevent inadvertent collapse of the shells from an open position (designated self stabilizing). For additional security, the boat may include a securing element, such as a U-shaped securing element which may span the ends of the shells which abut each other so that the integrity of the water resistant shells is not impaired, a flexible weather resistant covering such as a tent mounted over the boat for use as a camper, may be collapsible and can be stored inside the shells when for instance the shell are in a folded position.

Abstract: A wing profile sail is in the form of a sailcloth which defines an airfoil-shaped space, which is filled with air through openings or one-way closing mechanisms. At the sail's luff (1) there is provided a bag/lung-shaped body which can be filled with air and which is extendable in the height direction and which in an extended state forms an upwardly tapering conical, cylindrical body (11). The sail's outer cloth (2, 3) extends from this body (11) and is transferred on each side from this body (11) and is attached at a distance from the after leech (7), the sail's after part (7) being composed of one sailcloth surface. From the outer sailcloth's (2, 3) attachment area, in the inner spaces of the sail there is provided an intermediate sailcloth, which at least covers the area of the openings for air supply. The outer sailcloths (2, 3) are connected in the sail's bottom area in order to form the inner spaces in such a manner that the outer sailcloths are movable in relation to each other.