Folding bulwark assembly and related methods
AssigneeG.G. Schmitt & Sons, Inc.
InventorScott Danforth
Life of this patent
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Abstract
A folding bulwark assembly includes a bulwark door fitted in a bulwark aperture. The door is movable between a closed position, in which the door seals the aperture, and a folded down position. A frame arrangement includes an aperture frame and a door frame, the aperture frame being mounted in the aperture and pivotably receiving a hinge shaft of the bulwark door. At least one linear actuator located in the bulwark door is operable to pivot the door between the closed position and the folded down position. A locking assembly includes a linear actuator operable to move both ends of a locking shaft into and out of locking receptacles of the aperture frame. A plurality of aperture seals are mounted to the aperture frame and provide watertight sealing therearound.
Claims22
A folding bulwark assembly comprising:
- a bulwark door including:
- a door frame including side door frame members connected by upper and lower cross door frame members;
- a door skin mounted on the door frame;
- a hinge shaft pivotably mounted to the door frame proximate the lower cross door frame member and having hinge shaft ends extending through the side door frame members;
- a door actuation mechanism mounted to the door frame within the door skin and operable to pivot the door frame around the hinge shaft to move the bulwark door between a closed position and a folded down position;
- and
- a door locking mechanism mounted to the door frame and having a locking shaft with at least a first locking shaft end extendable and retractable from a first of the side door frame members and a locking actuator operable to extend and retract the at least one locking shaft end;
- and
- an aperture frame including aperture frame side members and a sill member connected therebetween, each of the aperture frame side members including a hinge shaft receptable receiving a respective one of the hinge shaft ends and at least one of the aperture frame side members including a lock mechanism receptable receiving the at least one locking shaft end with the bulwark door in the closed position.
A folding bulwark assembly comprising:
- a hull surface having a bulwark aperture defined therein;
- and
- a bulwark door pivotably mounted in the bulwark aperture by a hinge shaft, the bulwark door including at least one linear actuator located therein and engaging the hinge shaft, the at least one linear actuator being extendable and retractable to move the bulwark door between a closed position and a folded down position.
Dependencies are inferred from the claim text.