METHOD AND DEVICE FOR PROTECTION FROM PROHIBITIVE PRESSURE FALL IN DECOMPRESSION CHAMBERS Russian patent published in 2008 - IPC A62B11/00 B63C11/32 B63J2/00 

FIELD: physics.

SUBSTANCE: air under regulated excess pressure is supplied to the chamber along the input channel through a reducing device from a source of compressed air. Using a system of valves, relief pressure is established and air is let out through the output channel to the relief system. When there is a pre-calculated positive or negative fall of regulated pressure inside the decompression chamber, the input and output valves are closed simultaneously using a device for protection from prohibitive pressure fall.

EFFECT: automatic blocking off of input and output air channels of a chamber when there is a sharp pressure fall inside a chamber and more reliable operation.

2 cl, 3 dwg