Abstract:
A tubular structure stability system includes at least one tube having tube sections and at least one pillar supporting the tube. A tube movement structure is also provided and configured to enable relative movement of the tube sections and/or movement of the tube relative to the at least one pillar.
Abstract:
A system includes at least one tube forming a portion of a transportation path, wherein the tube is maintained as a low-pressure environment, a propulsion system configured to propel at least one capsule through the tube, a levitation system configured to levitate the capsule within the tube, and at least one tube sealer arranged along the at least one tube and configured to selectively create an airlock in the at least one tube.
Abstract:
A method of forming an internally-arranged laser-beam weld from within a composite structure. The method includes arranging a welding apparatus within an internal passage of the composite structure, and emitting a laser beam from the welding apparatus to form the internally-arranged laser-beam weld between layers of the composite structure.
Abstract:
A high-speed transportation system, the system including at least one transportation tube having at least one track, at least one capsule configured for travel through the at least one tube between stations, a propulsion system adapted to propel the at least one capsule through the tube; a levitation system adapted to levitate the capsule within the tube, and at least one tube sealer arranged along the at least one tube and configured to create an airlock in the at least one tube. In embodiments, the tube sealer may include a gate valve and/or an airbag.