Abstract: A hull mounted, steerable marine drive system having trim actuation is both steerable through 360 degrees and is trimmable. The marine drive system includes a watertight enclosure assembly for sealing the hull, which is adapted for keeping much of the marine drive system from being exposed to water. The enclosure includes a gasket flange plate, a retention plate and a folded gasket. The gasket flange plate closely follows the contour of the hull and enhances the hydrodynamic and wake performance of the present marine drive system. Further, marine drive system includes a forward-neutral-reverse (FNR) transmission assembly, a drive unit assembly having a trimmable upper unit and a steerable lower unit, a steering actuator assembly, a trim actuator assembly, and, preferably, trim foils for providing enhanced negative and positive trim and for providing enhanced positive and negative lift.

Abstract: A butt joint octagonal frustum type floating production storage and offloading (FPSO) system, wherein a floating body is provided with an upper structural body in an octagonal frustum shape and a lower structural body in a regular octagonal frustum shape; in a combined state, a smaller bottom surface of the upper structural body is fixedly connected with a smaller bottom surface of the lower structural body, to form a junction surface; the axis of the upper structural body and the axis of the lower structural body are positioned on the same straight line; the larger bottom of the upper structural body acts as an upper deck of the floating structure and the larger bottom of the lower structural body acts as a lower plate underwater of the floating structure; the junction surface is a full-load waterplane of the floating structure.

Abstract: A sandglass type ocean engineering floating structure is provided with an upper structural body shaped as a circular truncated cone or frustum and a lower structural body shaped as a regular circular truncated cone or regular frustum; under a combined state, the smaller bottom surface of the upper structural body is fixedly connected with the smaller bottom surface of the lower structural body to form a junction surface; the axis of the upper structural body and the axis of the lower structural body are positioned on the same straight line; the larger bottom of the upper structural body acts as an upper deck of the floating structure and the larger bottom of the lower structural body acts as a lower plate underwater of the floating structure; the junction surface is a full-load waterplane of the floating structure.

Abstract: A floating module includes an upper half and a lower half. The upper half includes one edge from which a flange extends downwardly, while the lower half includes an opposite edge that includes an upwardly facing flange. Modules can be interconnected to one another by engaging the upper flange from one with the lower flange from another. A cavity and channels are formed in the lower surface of the module such that water will become entrapped in the cavity and channels when the platform is placed in water. Through use of one way check valves positioned in fluid communication with the cavity and channels, a hydro-lock is formed that prevents the water from escaping the cavity and channels while it is placed in water.

Abstract: A cylindrical receiver has an upper region with female screw threads, a lower region, and a centrally located washer. A cylindrical sleeve has an upper end with male screw threads threadedly coupled to the female screw threads of the receiver. A cylindrical passageway is formed between the receiver and the sleeve. A cylindrical stake is slidably received in the sleeve. A tether line couples the stake to a movable patch whereby when the movable patch is coupled to a fixed patch, the stake will be in a raised orientation and whereby when a user separates the movable patch from the fixed patch, the weight of the stake will lower the stake into a lower orientation into a sandy or rocky bottom.

Abstract: A method and structure for mooring seaworthy craft against boat landings is disclosed. The structure comprises a fender (4) with a layer of compressible material having an exposed surface, mounted on the craft. Anchor points (12) are secured at laterally spaced locations on the craft, as are two draw mechanisms (14), one associated with each anchor point (12). A tie (10) is provided for extending from each anchor point (12) to its associated draw mechanism (14), and each mechanism is operable to draw its respective tie from an anchor point around a pylon thereby urging the fender (4) against both pylons. In the mooring process, the craft is first steered to the boat landing to engage the fender (4) against the pylons (6), and the ties (10) are withdrawn from each draw mechanism (14) and taken around one of the pylons. Each tie is then attached to an anchor point (12) on the craft, and the mechanisms (14) are activated to draw the ties (10) around the pylons to urge the fender (4) against them.

Abstract: A marine vessel hull includes an outer hull layer and an inner liner connected to the outer hull layer forming a cavity therebetween. A wireless identification device is contained within the cavity between the outer hull layer and the inner liner. The wireless identification device stores and wirelessly transmits at least one of a vessel identifier, manufacture information, and ownership information for the marine vessel.

Abstract: A bionic pectoral fin propelling device based on a planetary gear train, including a frame, a power source (1), a propelling part (2), left and right maneuvering parts (3), a fixed support plate (4), a movable support plate (5), a left pectoral fin (6), a right pectoral fin (7), a fish body (8), and a tail fin (9). The fixed support plate (4) and the movable support plate (5) are installed on the frame parallel to each other; the fixed support plate (4) is located in front of the movable support plate (5); and the left and right maneuvering parts (3) are located between the fixed support plate (4) and the movable support plate (5). The present invention solves the problem that the two pectoral fins are not synchronized, realizes variable speed propelling and left/right maneuvering, facilitates increasing the bearing capacity of the propelling device, and is particularly suitable in limited space applications.

Abstract: A floating apparatus for supporting a grill including a substantially rectangular float having an outer rim, a substantially rectangular base disposed within the outer rim, and a cavity disposed within the outer rim above the base. Each of a right grill support and a left grill support of a pair of grill supports has a linear base rod and an upper support attached to a top surface of the base rod. The base rod of each of the right grill support and the left grill support is disposed within the cavity. A plurality of magnets is disposed within a middle segment of the upper support of each of the right grill support and the left grill support. At least one cup holder unit is disposed within the cavity of the float. A portable outdoor grill is removably securable to the plurality of magnets.

Abstract: A method of supporting a chain stopper on a vessel, a chain stopper assembly for a vessel, and a vessel. The method of supporting a chain stopper on a vessel may comprise the steps of connecting a swivel element to the support structure on the vessel such that the swivel element is pivotable around a first axis perpendicular to a substantially horizontal axis; and coupling a chain stopper element to the swivel element such that the chain stopper element is pivotable relative to the swivel element around the substantially horizontal axis.

Abstract: A rudder for as ship is described, comprising a rudder blade (10) which is fastened via a rudder stock (32) to the aft end (16) of the ship, where the rudder blade (10) is a rudder blade of the suspension type, comprising a first rudder blade part (12) and a second rudder blade part (14), arranged above and below each other, respectively, the rudder stock (32) is mounted and fastened to the rudder blade (10) and extends up into the aft end (16) of the ship, where the rudder stock is coupled at the upper end to a steering gear (20) arranged at the aft end (16) of the ship. An outer tube (34) is arranged about the rudder stock (32) where the outer tube (34) is fastened in the first, upper rudder blade part (12) and the aft end (16) of the ship, respectively, and that the rudder stock (32) extends through the outer tube (34) and down into the second, lower rudder blade part (14).

Abstract: An anchor and an anchor positioning system are provided in which an anchor shackle is arranged such that, in use, it is disposed within a chasing collar. The anchor shackle can be positioned in a locking position in the chasing collar in which rotational movement of the anchor shackle around its longitudinal axis is inhibited. The anchor shackle may also be positioned in an unlocked position in the chasing collar. The anchor shackle can rotate around its longitudinal axis from the unlocked position to the locking position. Accordingly, the anchor shackle assists in maintaining the anchor in a desired orientation corresponding to the locking position.

Abstract: An apparatus is provided comprising a boat shade including an upper portion having a front end and a back end with an intermediate section therebetween. The boat shade further includes a lower portion having a top end coupled to the back end of the upper portion such that the lower portion extends downwardly from the upper portion. Further, the lower portion has a bottom end including a pair of members configured for being removably inserted into a pair of apertures of a boat.

Abstract: A method for deploying a payload into a body of water using a deployment vessel, the deployment vessel including a hull defining a payload compartment, the method including positioning the payload in the payload compartment of the deployment vessel, the deployment vessel and the payload having a buoyancy, wherein the buoyancy is initially negative, deploying the deployment vessel into the water at a drop zone, wherein the deployment vessel moves horizontally through the water as it submerges vertically downward under a force of gravity, changing the buoyancy to positive after a minimum horizontal distance is established between the drop zone and the deployment vessel, thereby causing the deployment vessel to surface and, after the surfacing of the deployment vessel, opening the hull to release the payload therefrom.

Abstract: A watercraft propulsion system configured to be coupled to the transom of a boat. A continuous track is supported by a suspension frame and operably coupled to an outboard motor.

Abstract: A forward/backward switching mechanism having an intermediate gear supported by an intermediate shaft perpendicular to a drive shaft is interposed between first and second input shafts. A clutch body is a dog clutch having upper and lower locking dogs. As the dog clutch moves along an axial direction of the second input shaft and is engaged with upper or lower gears, rotation of the first input shaft is forwardly or reversely transmitted to the second input shaft.

Abstract: Disclosed are a thruster system and a vessel including the same. The thruster system according to an exemplary embodiment of the present invention includes: a canister on which a thruster is installed, and which is movable upward and downward in a hull; a wire controller which controls a wire connected with the canister and enables the upward and downward movement of the canister; and a ballast tank which is installed in the canister and filled with water in order to offset the buoyancy that is applied to the canister.

Abstract: A removable cover assembly to provide or extend shading or precipitation coverage that can be mounted to a plurality of locations, including a fence or the rod holders of a boat. The cover assembly is collapsible for portability and ease of storage. The cover assembly further includes a cover unit mounted to the collapsible frame in a manner that creates a high arch to maximize airflow, shade, and clearance underneath the cover assembly. The entire present invention can be stored and transported in a slim storage assembly.

Abstract: The present invention is directed an adjustable foot rest system for a kayak comprising a bulkhead member adapted for cinchable non-slip support of the feet and on the fly user positioning. A mounting sleeve in the bow wall and/or runners are provided with the bulkhead resting inside the sleeve and/or runners by friction alone. Flexible straps equipped with strap adjusters are connected to the bulkhead, through guide anchors and secured to anchors affixed to the inside hull of the kayak near the seat. A bungee cord is threaded through an anchor disposed near the end of the bow and connected on each side to the bulkhead cross member, whereby the bulkhead position as selected by the user remains in place until the user selects a new position.

Abstract: A watersports boat includes a hull having an underside that defines a running surface that contacts water when the hull moves therein. The running surface includes a planing mode trailing edge and a pre-planing mode trailing edge. An aft running surface section of the hull includes port and starboard recesses that extend from a respective step at a forward end thereof aft to a respective aft edge thereof. The steps form the planing mode trailing edge where water disengages from the aft corners of the aft running surface section when the boat travels in planing mode and the aft edge of the recesses form the pre-planing mode trailing edge where water disengages from the aft corners of the aft running surface section when the boat travels in pre-planing mode.