Abstract: The present invention comprises a rectangular sheet with folding lines and a perimetric strip that facilitates adhering or welding thereof, and the forming of a bag-type closed compartment, inside of which there is a small tank loaded with a pressurized gas. The outlet hole of the tank can be opened from the outside, in order to let the gas escape and cause gradual and slow inflation of the compartment formed by the folded sheet, once it has been arranged around the main at the of a tube or conduit, thereby adhering to the walls of both elements during inflation.

Abstract: It is applicable to seal electric and telephone line mains and the like, that are not used thus sealing their entire diameter in the outlet end in order to prevent foreign elements from entering inside. It is also used to close up the ring-shaped opening that is formed between the cylindrical wall of the conduit or tubing and the outside of the electric and telephone lines or the like, in question. It is comprised of a sheet (1) folded along its longitudinal middle line and with the adhered or welded, a small tank (4, 4′, 4″) with pressurized gas remaining in the inside of this compartment, this tank having means for breaking the outlet mouth or hole (7) in order to fill said chamber with gas once it is wound closing up the outlet end of the main or piping (5). The inflating is caused when actuating from the outside some breaking means (8) provided for this purpose, thus the gas coming out gradually and slowly.

Abstract: A structural system and methodology for erecting a shading structure. The system and methodology provides for a rapid and fool proof installation of the shading element over a canopy structure. The shading element is coupled into a locking mechanism on a perimeter beam which rotates to increase effective the effective surface area of the canopy structure thereby providing the correct amount of tension to the shading element, thereby completing the installation process.