Abstract: A watercraft comprising a battery ballast system is shown and described. The battery ballast system comprises a plurality of carriage assemblies, each comprising a plurality of tiers along the watercraft's height axis, and each being movable along the watercraft's length axis. The batteries sit on movable supports that are movable along the watercraft's width axis. Each tier is loaded to less than 50 percent with batteries and battery supports so that the batteries in each tier can be moved along the ship's width axis relative to the hull in a manner that will affect the ship's list. The carriage assemblies occupy a portion of the length along which they are movable so that they can be moved along the ship's length axis relative to the hull to affect the ship's trim.

Abstract: A watercraft comprising a battery ballast system is shown and described. The battery ballast system comprises a plurality of carriage assemblies, each comprising a plurality of tiers along the watercraft's height axis, and each being movable along the watercraft's length axis. The batteries sit on movable supports that are movable along the watercraft's width axis. Each tier is loaded to less than 50 percent with batteries and battery supports so that the batteries in each tier can be moved along the ship's width axis relative to the hull in a manner that will affect the ship's list. The carriage assemblies occupy a portion of the length along which they are movable so that they can be moved along the ship's length axis relative to the hull to affect the ship's trim.

Abstract: A watercraft comprising a battery ballast system is shown and described. The battery ballast system comprises a plurality of carriage assemblies, each comprising a plurality of tiers along the watercraft's height axis, and each being movable along the watercraft's length axis. The batteries sit on movable supports that are movable along the watercraft's width axis. Each tier is loaded to less than 50 percent with batteries and battery supports so that the batteries in each tier can be moved along the ship's width axis relative to the hull in a manner that will affect the ship's list. The carriage assemblies occupy a portion of the length along which they are movable so that they can be moved along the ship's length axis relative to the hull to affect the ship's trim.

Abstract: A watercraft comprising a compressed air propulsion system is shown and described. The watercraft includes at least one propeller operatively connected to an air motor. Storage tanks supply compressed air having a pressure of at least 2000 psi to a pressure regulator that reduces the pressure and supplies air to an air control valve. User controls adjust the air control valve to adjust the flow rate of air to the air motor which in turn adjusts the direction and/or speed of rotation of the propeller. An on-board air compressor energized by a plurality of lithium iron phosphate batteries provides air to the air storage tanks when the pressure falls below a specified value. In certain examples, the electric and air propulsion system is used to replace a fossil fuel engine in an existing watercraft and can remain at sea longer than the existing watercraft.

Abstract: A high density storage facility including a plurality of rows of independently movable carriage racks, each row having a plurality of the independently movable carriage racks. Each carriage rack has a height, a length and a width, and defines a plurality of tiers, each tier defining at least one storage slot, the slots extending substantially the length of the carriage racks and being substantially open and accessible for inserting and removing objects into and from the width ends of the carriage racks. The carriage racks are disposed within the floor area and are independently movable along the floor in a direction consistent with the width of the floor area. Preferably, the carriage racks are arranged in the rows within the floor area with the lengthwise sides of the carriage racks being arranged substantially parallel to the lengthwise sides of the floor area.

Abstract: A system and method of scanning a number of objects such as crates or intermodal containers in a storage area having a plurality of movable racks, each rack occupying at least one level and capable of carrying at least one object. The racks are capable of being moved to establish successive vacant multi-level aisles among the racks. At least one scanner is movable substantially vertically within the successive vacant aisles to scan successive objects substantially adjacent to each vacant aisle to detect at least one pre-determined characteristic.

Abstract: A system and method of scanning a number of objects such as crates or intermodal containers in a storage area having a plurality of movable racks, each rack occupying at least one level and capable of carrying at least one object. The racks are capable of being moved to establish successive vacant multi-level aisles among the racks. At least one scanner is movable substantially vertically within the successive vacant aisles to scan successive objects substantially adjacent to each vacant aisle to detect at least one pre-determined characteristic.

Abstract: A high density storage facility including a plurality of rows of independently movable carriage racks, each row having a plurality of the independently movable carriage racks. Each carriage rack has a height, a length and a width, and defines a plurality of tiers, each tier defining at least one storage slot, the slots extending substantially the length of the carriage racks and being substantially open and accessible for inserting and removing objects into and from the width ends of the carriage racks. The carriage racks are disposed within the floor area and are independently movable along the floor in a direction consistent with the width of the floor area. Preferably, the carriage racks are arranged in the rows within the floor area with the lengthwise sides of the carriage racks being arranged substantially parallel to the lengthwise sides of the floor area.

Abstract: A high density storage facility including a storage area is described. Storage racks may be provided in the storage facility, and may be divided from top to bottom into slots. The slots may extend the width of the racks and be accessible for inserting and removing objects into and from the racks. The racks may be disposed in rows within the storage area and include a mechanism for rolling the racks along the storage area. The storage area may include a wall disposed substantially parallel to a widthwise side of the storage area. Doors may be disposed along the length of the wall, for providing access to the width ends of the racks. The racks may be installed upon rollably movable carriages along the width of the storage area for providing access to the width ends of the carriage racks from the doors.