Abstract: An inflatable buoyant platform (100) comprising a hollow inflatable enclosure (105) having a top surface (165) and a bottom surface (170), which are being peripherally joined by a flexible curtain (175). A support means (180) being provided inside the enclosure (105), the support means (180) adopts an extended form inside the enclosure (105) to enhance the rigidity of the enclosure (105) when the platform (100) is inflated, the support means (180) adapts a retracted form inside the enclosure (105) when the enclosure (105) is deflated. At least one inflating valve (135) on the enclosure (105) for inflating the enclosure (105) by an external source of compressed gas; at least one deflating valve (145) on the enclosure (105) for deflating the enclosure by the external source of compressed gas; and at least one exit valve (185) on the enclosure (105) for allowing the compressed gas to escape while deflating the enclosure (105).

Abstract: The present invention relates to a height adjustable speed bump for controlling speed of vehicles when placed on roadways and for serving as a barrier when used for blocking restricted areas. The speed bump comprises a portable body (100) having a middle portion (120) and two side portions (110a, 110b). An elevation (290) of the body (100) is adjustable in dependence upon the usage as the speed bump or the barrier. Various arrangements are proposed for adjusting the elevation (290). A sensor is also provided on the body (100), for tracking the number of objects such as vehicles, passing over it. Methods of using the bump and barrier are thus proposed.

Abstract: An inflatable buoyant platform (100) comprising a hollow inflatable enclosure (105) having a top surface (165) and a bottom surface (170), which are being peripherally joined by a flexible curtain (175). A support means (180) being provided inside the enclosure (105), the support means (180) adopts an extended form inside the enclosure (105) to enhance the rigidity of the enclosure (105) when the platform (100) is inflated, the support means (180) adapts a retracted form inside the enclosure (105) when the enclosure (105) is deflated. At least one inflating valve (135) on the enclosure (105) for inflating the enclosure (105) by an external source of compressed gas; at least one deflating valve (145) on the enclosure (105) for deflating the enclosure by the external source of compressed gas; and at least one exit valve (185) on the enclosure (105) for allowing the compressed gas to escape while deflating the enclosure (105).