A watercraft lift with hydraulically actuated arms which self-installs a fitted three-dimensional watercraft cover on a powerboat. A mechanism enables a linear actuator to drive a swing arm up to 180 degrees. The upper end of a two part arm articulates mechanically as the arm moves to reduce vertical elevation while operating. A spring-tensioned elongated roller keeps the cover tight and self-rolls the cover on the elongated roller when the actuated arms are pivoted forward. The mechanism can be attached to the guides of most watercraft lifts.

In a watercraft storage system a “wishbone” or U-shaped cradle liftable and rotatable by an overhead crane comprises adjustable air filled hull supports to either side of a boat hull and a keel support toward the stern of the watercraft. The cradle central opening clears a cantilever storage rack support beam assembly allowing the watercraft to be lowered onto or raised from the cantilever storage rack support beam assembly by an overhead traveling crane. To substantially reduce any longitudinal swaying of the cradle and watercraft during raising and lowering, a system or diagonal anti-sway bracing cables that automatically retract and extend is employed. In the preferred embodiment, the cradle is lowered into a water-filled channel within the storage structure to re-float the watercraft. A watercraft to be stored can be brought into the channel which contains alignment means to accurately position the watercraft over the cradle. The cradle can thereby be lifted properly, moved to a storage rack location and accurately stored on the cantilever storage rack support beam assembly.

In a watercraft storage system a “wishbone” or U-shaped cradle liftable and rotatable by an overhead crane comprises adjustable air filled hull supports to either side of a boat hull and a keel support toward the stern of the watercraft. The cradle central opening clears a cantilever storage rack support beam assembly allowing the watercraft to be lowered onto or raised from the cantilever storage rack support beam assembly by an overhead traveling crane. To substantially reduce any longitudinal swaying of the cradle and watercraft during raising and lowering, a system or diagonal anti-sway bracing cables that automatically retract and extend is employed. In the preferred embodiment, the cradle is lowered into a water-filled channel within the storage structure to re-float the watercraft. A watercraft to be stored can be brought into the channel which contains alignment means to accurately position the watercraft over the cradle. The cradle can thereby be lifted properly, moved to a storage rack location and accurately stored on the cantilever storage rack support beam assembly.

A tethering device for use in securing a boat to a dock is mounted to the underside of the dock decking with its deck trim assembly flush with the top of the dock and only the looped, running end of the tethering line extending from a hole in its deck trim assembly. Threaded studs welded to the underside to the deck trim assembly enable its line retraction mechanism and line locking mechanism to be supported below the decking leaving the deck surface free of tripping hazards and excess line. Below the decking, an assembly cover houses a self-retracting reel and a line-locking mechanism for control over the line, retracting excess line but enabling the user to set and hold the length of line needed for tethering a boat to the dock.

Device for the handling and storage of boats in a vertical dry dock. The boats (16) are removed from the water (7) via forks (13) which slide in a sliding fork-shaped system (12) carrying a cradle (10). The forks are displaced via a motor driven rack and pinion (14) system. The run of the rack and pinion system is limited by sensors (5 et 20). The entire mechanism is supported by a structure (8) which carries a tower (9) and a sliding fork-shaped system (12) that enables the cradles (10) to be deposited in berths (2, 2a). A rolling bridge (6) enables the entire assembly to be moved along X, Y and Z axes. The device is specifically useful for vertical dry dock management of boats, allowing the latter to be removed from the water and stored safely, or removed from storage and placed onto the water, as needed.

Device for the handling and storage of boats in a vertical dry dock. The boats (16) are removed from the water (7) via forks (13) which slide in a sliding fork-shaped system (12) carrying a cradle (10). The forks are displaced via a motor driven rack and pinion (14) system. The run of the rack and pinion system is limited by sensors (5 et 20). The entire mechanism is supported by a structure (8) which carries a tower (9) and a sliding fork-shaped system (12) that enables the cradles (10) to be deposited in berths (2, 2a). A rolling bridge (6) enables the entire assembly to be moved along X, Y and Z axes. The device is specifically useful for vertical dry dock management of boats, allowing the latter to be removed from the water and stored safely, or removed from storage and placed onto the water, as needed.

Disclosed herein is a watercraft storage stacker crane system that incorporates an offset mast.

Disclosed herein is a watercraft storage stacker crane system that incorporates an offset mast.

A retractable canopy having a fixed support coupled to a movable boom, an actuator to move the movable boom from a first position proximate a first end of a fixed support to a second position proximate a second end of the fixed support, at least one link coupled to the fixed support and the movable boom, at least one strut rotatably and translatably coupled to the at least one link, and a cover coupled to the fixed support and the movable boom to be deployed from a storage configuration to a deployed configuration by movement of the movable boom.

A support for a vessel such as a kayak or canoe comprises a support structure such as a kayak rack supported by the ground, the support structure comprising a beam for supporting the vessel, the beam generally parallel to the ground. A sliding structure is on the beam. The sliding structure comprises a bracket having an upwardly facing surface; and roller bearings on the upwardly facing surface of the bracket for ease in slidingly placing and removing the vessel from the support structure. A fastener fastens the sliding structure to the beam.