Patent ID: 8327871
Filing Date: 2012-12-11
Classification: G05D,Y10T

Abstract:
1. A fluid pressure regulator, comprising: a) a conduit having an inlet port, an outlet port, and an internal septum dividing the interior of said conduit into an inlet chamber and an outlet chamber, wherein the inlet port opens only into the inlet chamber and the outlet port opens only into the outlet chamber; b) said conduit having two or more conduit openings and the septum having two or more septum openings, with a valve cartridge reversibly inserted into each of said conduit openings and with said valve cartridges extending through said septum openings, wherein said valve cartridges seal the inlet chamber from the outlet chamber within said conduit; c) each said valve cartridge having a spring, a seat disc, and a valve seat, wherein the spring exerts a pushing force to push the seat disc away from the valve seat to open said valve cartridge to said outlet chamber; d) each said valve cartridge having a diaphragm creating a diaphragm chamber in said valve cartridge, wherein said diaphragm chamber is in communication with said outlet chamber and with the fluid and pressure therein when said valve cartridge is open to said outlet chamber; e) said valve cartridge having a piston which isolates the diaphragm chamber from the inlet chamber and the fluid and pressure therein; and f) each said valve cartridge and the conduit openings are aligned sequentially and in series along the axis of fluid flow, wherein one or more said valve cartridges are replaceable with a conduit plug reversibly insertable into the conduit openings, and wherein the maximum flow capability of the fluid pressure regulator is limited or reduced through the use of said conduit plug.