A structure equipped with a fuel cell system, wherein the structure comprises: a skirt configured to form an accumulation space between a bottom of the structure and the ground, an air supplier configured to supply off-gas, which is discharged from the fuel cell system, to at least one space selected from the group consisting of the accumulation space and an internal space of the skirt, and a pressure discharger configured to discharge pressure accumulated in the accumulation space to outside of the skirt from a lower end of the skirt, and wherein lift is imparted to the structure by supplying a predetermined amount of the off-gas from the air supplier to at least one space selected from the group consisting of the accumulation space and the internal space of the skirt.

A technician's work chair includes a frame, first, second and third air cushion devices, a seat assembly and an electronic task guiding system. The seal assembly has a cushion portion and a seatback portion. The cushion portion is supported to the seat supporting portion of the frame. The seatback portion has an inclination adjusting mechanism operable to change an angle of inclination of the seatback portion relative to the frame. The electronic task guiding system is supported to the frame, the electronic task guiding system being configured to provide the technician with task related signals.

A technician's work chair includes a frame, first, second and third air cushion devices, a seat assembly and an electronic task guiding system. The seal assembly has a cushion portion and a seatback portion. The cushion portion is supported to the seat supporting portion of the frame. The seatback portion has an inclination adjusting mechanism operable to change an angle of inclination of the seatback portion relative to the frame. The electronic task guiding system is supported to the frame, the electronic task guiding system being configured to provide the technician with task related signals.

The present invention relates to a traction device using a drone and, more specifically, to a traction device using a drone, the device being capable of towing, along the progressing direction of a drone and by the thrust of the drone, an operator operating a drone and a carrier on which the operator rides. The traction device using a drone, of the present invention, can be applied to a moving means and leisure activities by allowing a user operating a drone to move in a flying direction of the drone, thereby enabling utilization of the drone to increase. In addition, the traction device using a drone of the present invention has an ascending and descending operation unit and a forward and backward operation unit, which are respectively formed as a rotational type, such as that of a knob dial, so as to facilitate maintenance of a constant altitude and a constant speed of the drone.

A ship or other large and heavy load may be supported on a fluid cushion comprising a two dimensional array of airbags constrained within elastic mesh compartments (81) and inflated by individual valve assemblies (188, 189, 231 . . . ) which are connected by a grid of airlines and distributed over a flexible web (60) separating respective horizontal layers of the assembly. The ship rests on an upper layer while the compartments of a lower layer are inflated and deflated in sequence to generate a travelling contraction which moves through the fluid cushion to translate its base surface over the ground in any desired direction of travel, with the load gradually moving by fluid pressure in the same direction. The deflated cushion assembly can be stored and deployed on a spool (see FIG. 1-3) rotated by a hydraulic motor. Independent claims are included to the cushion assembly including an elastic or other tension force generating means, the compartmentalized structure, the layered structure, the deployment spool, the distributed valve assemblies, and corresponding methods of operation.

A cargo management system may include an air cushion cargo shuttle, an air cushion cargo shuttle, an air blower configured to blow air beneath the air cushion cargo shuttle and a shuttle drive unit that interacts with a linear guide rail and configured to cause linear motion, wherein the shuttle drive unit is configured for self-propulsion.

An air cushion cargo shuttle includes a frame having a channel, an air curtain disposed within the channel of the frame, an air blower configured to blow air into an air volume beneath the air cushion cargo shuttle, and an air cushion formed by the air curtain configured to maintain the air volume.

A ship or other large and heavy load may be supported on a fluid cushion comprising a two dimensional array of airbags constrained within elastic mesh compartments (81) and inflated by individual valve assemblies (188, 189, 231 . . . ) which are connected by a grid of airlines and distributed over a flexible web (60) separating respective horizontal layers of the assembly. The ship rests on an upper layer while the compartments of a lower layer are inflated and deflated in sequence to generate a travelling contraction which moves through the fluid cushion to translate its base surface over the ground in any desired direction of travel, with the load gradually moving by fluid pressure in the same direction. The deflated cushion assembly can be stored and deployed on a spool (see FIG. 1-3) rotated by a hydraulic motor. Independent claims are included to the cushion assembly including an elastic or other tension force generating means, the compartmentalised structure, the layered structure, the deployment spool, the distributed valve assemblies, and corresponding methods of operation.

An air cushion cargo shuttle includes a frame having a channel, an air curtain disposed within the channel of the frame, an air blower configured to blow air into an air volume beneath the air cushion cargo shuttle, and an air cushion formed by the air curtain configured to maintain the air volume.

An air cushion cargo shuttle for loading and unloading cargo on an airplane is described. The air cushion cargo shuttle includes a first inner air curtain defining a first volume of pressurized air. The air cushion cargo shuttle also includes a noise barrier curtain enclosing the first inner air curtain. The noise barrier curtain is adapted to trap air leaking from the first inner air curtain.