Abstract: A habitation module that provides an artificial gravity environment. In one embodiment, the habitation module includes a rotating structure that rotates about an axis in relation to a stationary structure. The rotating structure includes a first gravity chamber that projects radially from the rotating structure, and a second gravity chamber that projects radially from the rotating structure in an opposite direction than the first gravity chamber. The first gravity chamber and the second gravity chamber are each comprised of a plurality of ring members that form side walls of the first gravity chamber and the second gravity chamber. The ring members are concentric so that the side walls of the first gravity chamber and the second gravity chamber radially extend and radially contract in upon themselves.

Abstract: Provided is an X-beam structure including: a plurality of beams extending in X-axis, Y-axis, and Z-axis directions and formed in a lattice pattern and a plurality of cross intersections at which an X-axis beam, a Y-axis beam, and a Z-axis beam meet one another, wherein in the X-beam structure in which a cross section of each beam has the geometry of a right-angled X, and the beam intersections are formed with one continuous beam and the two other joining beams are attached and welded onto the continuous beam.

Abstract: A habitation module with a gravity chamber that provides an artificial gravity environment. In one embodiment, the gravity chamber includes an inner cylindrical structure, outer wall segments that are attachable to one another to form an outer cylindrical wall, and opposing side walls having support members that are extendable. The gravity chamber has a first diameter when the support members are contracted, and has a larger second diameter when the support members are extended. The gravity chamber connects to the habitation module with rotating attachment members so that the gravity chamber rotates about an axis. The habitation module also includes an inflatable shell that encompasses the gravity chamber.

Abstract: In a shock-secure door or hatch arrangement on marine ships, a doorway frame, on two opposite longitudinal edges thereof, has continuous latching bars that are receivable in corresponding grooves in opposite edges of a door in order to latch the door in a closed position. The latching bar on the hinged edge of the doorway frame is stationary and engages into the associated door edge groove during a closing motion of the door. The latching bar on the opposite edge of the doorway frame is movable by actuating elements so as to engage into the respective associated door edge groove for latching the door in its closed position. A locking mechanism locks and unlocks the movable latching bar in its latched position.

Abstract: A pressure bulkhead may include a bulkhead wall having a radially inner disk and a radially outer compression ring, the outer compression ring being reinforced to balance meridional and hoop stresses sustained by the bulkhead wall in response to a pressure differential across the pressure bulkhead; and the radially inner disk being unitary with the outer compression ring and being made of the same material as the outer compression ring.

Abstract: A rapid access fire protection panel system for applications requiring fire protection against severe fire situations. The system is a panel system that can be rapidly installed and rapidly removed for periodic maintenance or inspection. The panel system includes a special expandable insulation. A first preferred embodiment of the present invention includes: insulated sub-frame channels, corner support brackets, intermediate clips, insulated panels including a rigidized metal outer layer, cover strips, cover plates, insulated light panels and cable gland recess penetrations. A preferred embodiment of the present invention is specifically designed to meet the N-30 requirements of the United States Navy.

Abstract: A lavatory for an aircraft cabin includes a wall having a forward wall portion disposed immediately aft of and substantially conforming to an exterior aft surface of an aircraft cabin structure, such as a passenger seat, that is substantially not flat in a vertical plane. The forward wall portion includes a forward projection over an aft portion of the adjacent passenger seat. The forward wall portion can define a secondary space in the interior lavatory space, which can provide an amenity stowage space, and can include design elements providing visual space.

Abstract: A seal arrangement for sealing around a rotating shaft that passes through a ship bulkhead includes an expandible and contractible seal ring made of several seal ring segments, and radial actuators that engage the seal ring segments and can be power-activated, e.g. with a pressure medium, to pull the seal ring segments radially outwardly, thereby expanding the seal ring to a larger diameter spaced away from the shaft. When the radial actuators are not activated, the biasing force of springs contracts the seal ring segments to a smaller diameter, to establish sealing contact of the seal ring on the shaft. In normal operation a control unit activates the actuators, but if sensors detect a power failure or water in the ship, or a manual switching is triggered, then the seal arrangement contracts under spring force into the sealing condition with the seal rings sealing against the shaft.

Abstract: The present invention relates to a method for manufacturing a number of wall-covering elements, comprising the steps of:—providing a core layer of a core layer material having an upper surface and a lower surface, with a number of first grooves in a pattern in the upper surface;—covering the upper surface of the core layer and filling the first grooves with a curing cover layer material in liquid form so that a cover layer with an upper surface is formed; and—arranging a number of second grooves in the upper surface of the cover layer along at least a part of the pattern of the filled first grooves, such that the surface of at least one of the walls of the second grooves is formed by the cover layer.

Abstract: A boat having a deck with a deck locker is disclosed herein. The deck locker includes a compartment mounted beneath the deck, and an opening in the deck for accessing the interior of the compartment. The locker also includes a lid for covering the opening in the deck. The locker further includes a latching arrangement for releasably securing the lid in a closed position covering the opening. The latching arrangement includes a striker mounted to the lid and a latching member and actuator mounted offset from the lid.

Abstract: A boat having a deck with a deck locker is disclosed herein. The deck locker includes a compartment mounted beneath the deck, and an opening in the deck for accessing the interior of the compartment. The locker also includes a lid for covering the opening in the deck. The locker further includes a latching arrangement for releasably securing the lid in a closed position covering the opening. The latching arrangement includes a striker mounted to the lid and a latching member and actuator mounted offset from the lid.

Abstract: A marine vessel has at least two engines installed in separate respective engine compartments that are positioned substantially horizontally adjacent to each other and are separated from each other by a wall structure defining at least one opening provided with a floodgate arrangement. The floodgate arrangement includes a gate device that is movable between a closed position, in which the gate device blocks the opening, and an open position, in which the gate device frees the opening, and a buoyancy assisted movement actuation device for moving the gate device from its closed position to its open position under the influence of rising water level.

Abstract: Equipment is removably connected by a load transfer element and a removable fastener bolt to a core sandwich type of bulkhead through a plug-in insert, adhesively bonded to the bulkhead at interface surfaces within a pocket formed in the bulkhead for reception of such insert.

Abstract: A bulkhead structure for partitioning a deck comprises a bulkhead panel for partitioning the deck. The bulkhead panel has an elongated slot therein. A base member is affixed to the deck and received within the elongated slot for supporting the bulkhead panel. Corrosion prevention apparatus between the bulkhead panel and the base member inhibits corrosion of the bulkhead structure.

Abstract: A bulkhead construction for partitioning a deck comprises a lower panel member having an L-shaped portion affixed to the deck. An upper panel member has an L-shaped portion interfitting in the L-shaped portion of the lower panel whereby the upper panel member is supported by the lower panel member. A plate element for affixing the panel members to each other is fastened to the upper and lower panel members. A second embodiment of the invention comprises the lower panel member being constituted of a first metal. A base member constituted of a second metal is affixed to the deck for receiving the lower panel member. Polymeric material is disposed between the panel member and the base member to prevent contact of the first and second metals in order that corrosion is substantially prevented.