Provided in this disclosure is a portable night vision tunnel for operating a vehicle in a simulated night environment. The night vision tunnel is formed by assembling a plurality of modules on a driving surface to provide a darkened interior in which the vehicle can be driven. Each of the modules are formed of inflatable arch components each having a light-absorptive interior surface for creating the simulated night environment for operating the vehicle. A fastener arrangement connects each of the arch components to an adjoining one to form a single module. The tunnel includes a portal formed on an able arch component at a respective module proximate to the end of the tunnel. The portal admits the vehicle into the tunnel while maintaining the simulated night environment for operating the vehicle. An air circulation system ventilates and circulates air within an interior space of the tunnel.

A structure is provided having a floor, and a canopy made from a flexible, substantially air-impermeable material and having a tubular rib. The canopy has an air inlet port by which the interior of the tubular rib can be connected to a source of compressed air, and is movable by the supply of compressed air from a collapsed state in which the tubular rib is deflated to an inflated state in which the tubular rib is inflated and supports the canopy in such a way that the canopy encloses an interior space above the floor and forms a roof and side walls of the structure. The floor has three substantially rigid floor panels which may be arranged together to form a substantially planar floor, or connected together to form the base and sides of a container in which the canopy can be stored when in the collapsed state.

Provided in this disclosure is a portable night vision tunnel for operating a vehicle in a simulated night environment. The night vision tunnel is formed by assembling a plurality of modules on a driving surface to provide a darkened interior in which the vehicle can be driven. Each of the modules are formed of inflatable arch components each having a light-absorptive interior surface for creating the simulated night environment for operating the vehicle. A fastener arrangement connects each of the arch components to an adjoining one to form a single module. The tunnel includes a portal formed on an able arch component at a respective module proximate to the end of the tunnel. The portal admits the vehicle into the tunnel while maintaining the simulated night environment for operating the vehicle. An air circulation system ventilates and circulates air within an interior space of the tunnel.

A pneumatic support having a body (112) which can be pneumatically pressurised and which, when under operating pressure, operationally holds a compression member (96, 128 to 131) which extends substantially over the length of the body and a tensile member (98, 138 to 141) which likewise extends substantially over the length (I) of the body at a distance from each other, wherein the compression member (96, 128 to 131) and the tensile member (98, 138 to 141) are connected to each other at the end in connection nodes (91), and wherein the body which can be pneumatically pressurised has pneumatic drop-stitch transverse fibre pressure panels (100, 165, 113 to 116).

An impact shield for earthquake protection is described herein. The impact shield may include a canopy constructed of a puncture-resistant material, the canopy defining a first internal volume accessible via a first opening, the canopy being structured to form a semispherical shape when in an inflated state, the semispherical shape defining a space dimensioned for sheltering at least one human body; a support joined to the canopy and constructed of the puncture-resistant material, the support defining a second internal volume accessible via the first opening and a second opening, the support located within the space, the support structured to form a column when in the inflated state; and a fitting joined to the support for closing the second opening to fix the first internal volume and the second internal volume after inflation of the support and the canopy.

The document concerns inflatable tents, in particular non-durable, inflatable tents. The tents are provided with an inflated arch and a flysheet. The arch can be simply constructed from first and second flexible sheet materials joined to one another, and the flysheet is pivotally openable about the arch.

An inflatable structure that can be easily transported, inflated, assembled, disassembled and stored with minimal if any tools and in a fraction of the time associated with prior art structures. The inflatable structure is comprised of a plurality of interchangeable structural members removably attached to one another, and that afford the user virtually endless design options and superior weatherproofing and insulating qualities. The structural member further comprises a plurality of filaments positioned in an airtight void, wherein said plurality of filaments are in tension when the structural member is inflated.

A temporary maintenance enclosure for the maintenance of at least part of a turbine blade, the enclosure comprises a platform arranged, in use, to border at least part of the circumference of a blade in need of maintenance; at least one wall and a roof which are carried by the platform; the at least one wall extending from the platform; wherein said roof extends from the wall towards the blade; and wherein the enclosure further comprises a flexible sheath which seals onto the blade to provide a sealed volume for maintenance of said blade.

A convertible inflatable device includes a first inflatable bed, a second inflatable bed, a front chamber, a left chamber, a right chamber, and a rear chamber. The first inflatable bed is surrounded by the front chamber, the left chamber, the right chamber, and the rear chamber. The front chamber, the left chamber, the rear chamber, and the right chamber are connected to each other sequentially. A first end of the second inflatable bed is connected to the junction of the first inflatable bed and the rear chamber. The convertible inflatable device can be converted to an inflatable bed, an inflatable boat, an inflatable water slide or an inflatable recliner chair, and the conversion between any of them is mutual and convenient.

A structure is provided having a floor, and a canopy made from a flexible, substantially air-impermeable material and having a tubular rib. The canopy has an air inlet port by which the interior of the tubular rib can be connected to a source of compressed air, and is movable by the supply of compressed air from a collapsed state in which the tubular rib is deflated to an inflated state in which the tubular rib is inflated and supports the canopy in such a way that the canopy encloses an interior space above the floor and forms a roof and side walls of the structure. The floor has three substantially rigid floor panels which may be arranged together to form a substantially planar floor, or connected together to form the base and sides of a container in which the canopy can be stored when in the collapsed state.