The present invention relates to a rotating and sliding boat boarding door mechanism configured to aid the vessel's occupants in their ingress and egress to and from the vessel. More particularly, the present invention provides a rotating and sliding boat boarding door assembly and system that slidingly moves into a recess in the vessel's exterior (e.g., side, transom, and/or gunwale) that has been configured to receive and maintain the boarding door assembly in a position where it is out of sight when fully recessed.

The present invention relates to a rotating and sliding boat boarding door mechanism configured to aid the vessel's occupants in their ingress and egress to and from the vessel. More particularly, the present invention provides a rotating and sliding boat boarding door assembly and system that slidingly moves into a recess in the vessel's exterior (e.g., side, transom, and/or gunwale) that has been configured to receive and maintain the boarding door assembly in a position where it is out of sight when fully recessed.

The present invention relates to a rotating and sliding boat boarding door mechanism configured to aid the vessel's occupants in their ingress and egress to and from the vessel. More particularly, the present invention provides a rotating and sliding boat boarding door assembly and system that slidingly moves into a recess in the vessel's exterior (e.g., side, transom, and/or gunwale) that has been configured to receive and maintain the boarding door assembly in a position where it is out of sight when fully recessed.

A draw latch (1) for latching together two closure members of a watercraft, which draw latch have an open position, wherein the two closure members are not latched, and a latched position, wherein the two closure members are secured, comprising a keeper (2) arranged to be attached to a first closure member, a base (3) arranged to be attached to a second closure member, a lever (4) pivotally connected to the base (3), a locking member (5), made of elastic material, pivotally connected to the lever (4), and arranged to be affixed to the keeper (2) when the draw latch is in the latched position. The draw latch further comprises a metal housing (6) arranged to cover the keeper, base, lever and elastic locking member against the two closure members when the keeper is attached to the first closure member, the base is attached to the second closure member and the draw latch is in the latched position.

A lift assist mechanism is provided for positioning a hatch cover in relation to a corresponding opening in a hatch frame. The assist mechanism includes a torsion bar and a lifting mechanism. The torsion bar has first and second opposite ends. The first end secures to the hatch frame. The second end connects to a bar spur gear. The lifting assembly includes a lift spur gear and a hinge gear. The lift spur gear engages the bar spur gear. The gears convert an acute angle twist of the bar to substantially perpendicular pivot the hatch cover from the hatch frame.

The present invention relates to a rotating and sliding boat boarding door mechanism configured to aid the vessel's occupants in their ingress and egress to and from the vessel. More particularly, the present invention provides a rotating and sliding boat boarding door assembly and system that slidingly moves into a recess in the vessel's exterior (e.g., side, transom, and/or gunwale) that has been configured to receive and maintain the boarding door assembly in a position where it is out of sight when fully recessed.

An autonomous maritime surface vehicle (AMSV) that includes a hull and a cap removably coupled to the hull (e.g., via a plurality of latches). The cap is movable between a first configuration, in which the cap is coupled to and sealingly encloses an entirety of an interior of the hull, and a second configuration in which the cap is at least partially decoupled from the hull, thereby permitting access to the interior of the hull. The AMSV also includes a single pick point coupled to a top, exterior surface of the cap, such that the AMSV can be easily and efficiently picked up and carried via the single pick point.