Patent ID: 7603725

Claim:
A shock balance controller, comprising: a support structure comprising a chamber and a port disposed in a wall of the chamber; a bladder being filled with a first material pressurized to a first pressure and a second material in the chamber being pressurized to a second pressure, wherein the first material is substantially different and not in fluid communication with the second material, wherein the support structure is configured to provide support to the bladder, the bladder being formed inside a crash helmet; a housing coupling the bladder to the support structure, wherein the housing comprises a first piston having a gasket circumferentially disposed about an end of the first piston to provide a seal with the housing, and a second piston having another gasket circumferentially disposed about another end of the second piston to provide another seal with the housing; and a spring disposed in the housing between the first piston and the second piston, the spring being configured to transfer energy between the bladder and the support structure by moving the first piston to compress the spring, and the spring, when compressed, is configured to expand and move the second piston in the housing towards the chamber to increase the second pressure of the second material when the first pressure of the first material is increased upon receiving pressure from a shock.