A limit switch device for a boat lift includes a lower gear connected to and rotated by a drive shaft of the boat lift, and an interengaged upper gear operatively connected to an electronics module of the limit switch. The interengaged gears are enclosed within a gear housing that is sufficiently narrow to restrict the gears from laterally disengaging one another. The limit switch electronics module is mounted above the drive shaft and disposed interiorly of the gear mechanism. The module does not protrude beyond the frame bearing blocks that rotatably support the drive shaft and winder of the boat lift.

A catamaran lifting apparatus is disclosed for lifting objects in a marine environment. The apparatus includes first and second vessels that are spaced apart during use. A first frame spans between the vessels. A second frame spans between the vessels. The frames are spaced apart and connected to the vessels in a configuration that spaces the vessels apart. The first frame connects to the first vessel with a universal joint and to the second vessel with a hinged connection. The second frame connects to the second vessel with a universal joint and to the first vessel with a hinged or pinned connection. Each of the frames extends upwardly in an inverted u-shape, providing a space under the frame and in between the barges that enables a marine vessel to be positioned in between the barges and under the frames.

A catamaran lifting apparatus is disclosed for lifting objects in a marine environment. The apparatus includes first and second vessels that are spaced apart during use. A first frame spans between the vessels. A second frame spans between the vessels. The frames are spaced apart and connected to the vessels in a configuration that spaces the vessels apart. The first frame connects to the first vessel with a universal joint and to the second vessel with a hinged connection. The second frame connects to the second vessel with a universal joint and to the first vessel with a hinged or pinned connection. Each of the frames extends upwardly in an inverted u-shape, providing a space under the frame and in between the barges that enables a marine vessel to be positioned in between the barges and under the frames.

A wave electricity generator system includes a water craft, a reinforcement beam mounted to a bottom of the watercraft, a power generating unit and a leverage assembly. The leverage assembly includes a connection unit disposed on the watercraft, and a lever 62 connected to the power generating unit and the connection unit. The connection unit includes a rope retaining seat, a rope and a protective pad. The rope retaining seat is disposed above the watercraft and connected to the lever. The rope is disposed around the watercraft, threads through the reinforcement beam, and is connected to the rope retaining seat. The protective pad is disposed between the reinforcement beam and the rope.

A wave electricity generator system includes a water craft, a reinforcement beam mounted to a bottom of the watercraft, a power generating unit and a leverage assembly. The leverage assembly includes a connection unit disposed on the watercraft, and a lever 62 connected to the power generating unit and the connection unit. The connection unit includes a rope retaining seat, a rope and a protective pad. The rope retaining seat is disposed above the watercraft and connected to the lever. The rope is disposed around the watercraft, threads through the reinforcement beam, and is connected to the rope retaining seat. The protective pad is disposed between the reinforcement beam and the rope.

A system for providing raw water for cooling Auxiliary Systems of a Luxury Boat in Temporary Dry Storage involves a pump coupled to a Dry Storage Lift capable of moving the Luxury Boat between an in-water position and a dry storage position, a raw water inlet of the pump is movable between a first position out of a source of the raw water and a second position in the raw water source, and wherein, when the Dry Storage Lift has the Luxury Boat in the in-water position, the raw water inlet will be in the first position and when the Dry Storage Lift has the Luxury Boat in the dry storage position, the raw water inlet will be in the second position.

A system for providing raw water for cooling Auxiliary Systems of a Luxury Boat in Temporary Dry Storage involves a pump coupled to a Dry Storage Lift capable of moving the Luxury Boat between an in-water position and a dry storage position, a raw water inlet of the pump is movable between a first position out of a source of the raw water and a second position in the raw water source, and wherein, when the Dry Storage Lift has the Luxury Boat in the in-water position, the raw water inlet will be in the first position and when the Dry Storage Lift has the Luxury Boat in the dry storage position, the raw water inlet will be in the second position.

A device and assembly for loading a watercraft. In one embodiment, the device includes an elongated extension brace and a lever pivotable about the elongated extension's second end. A tether may be aligned about the lever and repositionable between a vehicle and the watercraft. The result is an assembly to repositionably secure a watercraft from a surface to a loaded vehicle position.

A device and assembly for loading a watercraft. In one embodiment, the device includes an elongated extension brace and a lever pivotable about the elongated extension's second end. A tether may be aligned about the lever and repositionable between a vehicle and the watercraft. The result is an assembly to repositionably secure a watercraft from a surface to a loaded vehicle position.

The invention relates to methods of putting a boat in the water and removing the boat from the water and to a boat launch and recovery platform (1) comprising a frame (10) for receiving a boat (2), flotation means (20) fixed to the frame (10), and a floating floor (30) coupled to the frame (10) so as to be vertically translatable. The launch and recovery platform (1) is arranged for, and the methods enable, a transition from a configuration in which the floating floor (30) rests on a support floor (11) when the launch and recovery platform (1) is out of the water, to a configuration in which the floating floor (30) floats on the surface (S1) of the water when the launch and recovery platform (1) is afloat.