Patent ID: 7669610

Claim:
A pressure regulator, comprising: a body having a pressure inlet, a controlled pressure outlet non-coaxially aligned with the pressure inlet, and a pressure control inlet; and a piston disposed in the body and having a first surface fluidly coupled to the pressure inlet, a second surface fluidly coupled to the controlled pressure outlet, a third surface fluidly coupled to the pressure control inlet, and a transverse bore defining a fluid path through the piston and extending between the first surface and the second surface to fluidly couple the pressure inlet to the controlled pressure outlet, wherein the first surface of the piston is configured to contact a valve seat and to control the flow of fluid from the pressure inlet to the controlled pressure outlet in response to a difference between a pressure applied to the third surface of the piston via the pressure control inlet and a pressure applied to the first surface and the second surface of the piston via the controlled pressure outlet.