Impact absorbing device

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.

What is claimed is:  
     
         1 . An impact absorbing device of the type formed by pneumatic chambers and that contain the element to protected, the device comprising: 
 a first pneumatic chamber to absorb impacts in communication with a second chamber and a top flexible cover that rests on the first chamber.    
     
     
         2 . An impact absorbing device according to  claim 1 , wherein a hole for fluid to enter the second chamber is situated opposite an entrance hole of the first chamber.  
     
     
         3 . An impact absorbing device according to  claim 1 , wherein the top flexible cover is soldered to the first chamber.  
     
     
         4 . An impact absorbing device according to  claim 1 , wherein the top flexible top cover has in one of its sides an opening or clasp.  
     
     
         5 . An impact absorbing device according to  claim 1 , wherein pneumatic chambers are filled through a valve situated in one of the sides of the device.  
     
     
         6 . An impact absorbing device according to  claim 1 , wherein inside the first pneumatic chamber and on its bottom wall there is an ampoule containing carbon dioxide.  
     
     
         7 . An impact absorbing device according to  claim 1 , wherein the second impact absorbing chamber is made up of two parallel longitudinal chambers.