Abstract: Individual four-sided shaped modules used in an assembly for underground storage of storm water and other fluid storage needs. Modules are assembled into a resultant four-sided tiling shape for maximized structural strength and material use efficiency. Internal four-sided shaped modules are assembled and encased by external four-sided shaped modules. Internal adjacent modules are in direct fluid communications with one another through a channel-less chamber. Internal four-sided shaped modules drain into four-sided shaped modules chamber where fluid is either stored or drained. Assemblies include various top and side pieces along with access ports for entry into said assembly.

Abstract: A fan-shaped tent skeleton and a fan-shaped tent are provided. The fan-shaped tent skeleton comprises a base plate, wherein the base plate is arranged laterally, rotary rod assemblies are arranged on upper and lower sides of a first end of the base plate, each of the rotary rod assemblies comprises a fixed seat fixed to the base plate, two rotary rods are hinged to the fixed seat, the two rotary rods are a front rotary rod and a back rotary rod, the front rotary rod and the back rotary rod are connected to a front hinge shaft and a back hinge shaft and are connected to the fixed seat through the front hinge shaft and the back hinge shaft, and a first connecting structure for connecting a fan-shaped tent fabric is arranged at a second end of the base plate.

Abstract: A modular removable covering and barrier system. In one embodiment, a removable pool or pond covering system includes a track assembly installed on a deck along the perimeter of a pool, a sheet of plastic or other suitable material spanning the area enclosed by the track assembly, a bottom seal between the track assembly and the deck, and a top seal between the track system and the sheet of plastic. The track assembly may be modular such that the track assembly can be installed on any size and shape of pool or pond and can be easily stored when not in use.

Abstract: The invention relates to a solar roof system (2) comprising: a roof surface (18) having solar panels (20); at least two base support elements (4) for retaining the roof surface (18), wherein each base support element (4) has a main support (6) which is formed by a closed hollow profile which is bent in a bending region (8) by less than 90 degrees and more than 60 degrees, and which has at least one straight first support section (10) connected to the bending region (8), wherein the first support section (10) serves to retain the roof surface (18); at least three framework elements (12, 14, 16, 42) by means of which the first support section (10) is secured down on a bend outer side (17) of the bending region (8) in the intended installed state of the solar roof system (2); and at least two mount adapters (24) assigned to the base support elements (4) for securing the base support elements (4) to a mount (26).