Patent ID: 7264018

Claim:
A variable pressure regulator control device comprising: a valve body having a fluid inlet, a fluid outlet, a fluid pressure-sensing chamber, and a valve seat in fluid communication with said inlet and defining an opening into said chamber; a unitarily-formed resilient member comprising a wall portion, a valve stem portion and a valve element portion, said wall portion forming a wall of said chamber which is responsive to pressure in said chamber and which is self-restoring, said valve stem portion extending through said chamber towards said valve seat and said valve element portion cooperating with said valve seat, said valve element portion being located between the valve seat and said fluid inlet; an adjuster mounted to said valve body, said adjuster adapted to deflect said resilient member away from said valve seat in response to pressure changes within said chamber; a cover fixing said adjuster for rotation therewith such that the amount of deflection of said resilient member is capable of being adjusted by rotation of said cover.