Abstract: Impact absorbing device of the type made up of pneumatic chambers designed to protect fragile elements such as calculators, electronic plates (circuits), measuring instruments, remote controls and a the similar ones. It consists of a first impact absorbing chamber at the bottom and a top flexible cover that rests on the mentioned first chamber. The chambers can be inflated through an entrance valve for exterior air, carbon dioxide gas, or gases generated through a chemical reaction produced by reacting elements contained inside the first chamber. The top flexible cover can have a Velcro® type clasp or similar. It gets a perfect filling and therefore the pressure of the mentioned chambers on the protected element due to the fact that the hole or perforation for the gas to go into the second chamber is placed on the opposite side to the ingoing perforation of the first chamber or, correspondingly, from the place where the gases are generated; which will fill the impact absorbing chambers.

Abstract: Security fastening connection for packets and other uses, destined to the joining of the ends of fastening means such as ropes, perforated tapes, dented tapes or similar being applied to packets constituted by postal packages, luggage or boxes; includes a) a main body provided with a central cavity which is exposed through at least one inlet mouth that affects one of the main faces of said main body; and b) at least two passages for fastening means, said passages having retentive admission means for dented tapes going through said main body in a way such that they coincide in said central cavity. The device further includes c) at least one salient, disposed within said central cavity, and which constitutes a fastening means for perforated tapes; and d) a blocking lid of said inlet mouth that, provided by unremovable connection means with said main body, conforms the support of the identifying security means.