Patent ID: 7628910

Claim:
An apparatus for use in controlling fluid flow comprising: a pressure regulator defining a first inlet, a first outlet and a first passageway extending therebetween and having a first valve and a first valve seat in the first passageway, the first valve being moveable into engagement with the first valve seat to close the first passageway to prohibit fluid flow therethrough and various other positions spaced from the first valve seat to regulate flow through the first valve seat; a filter assembly defining a second inlet, a second outlet and a second passageway extending therebetween, the second outlet is in fluid communication with the first inlet of the pressure regulator to filter the fluid entering the pressure regulator, and having a filter element and a wiper engaging the filter element to clean the filter element; and a control device being in communication with the pressure regulator and the filter assembly and having at least two settings, a first setting causing the first valve to engage the first valve seat to prohibit fluid flow through the pressure regulator and to cause the wiper of the filter to wipe across the filter element in a first direction to clean the filter element, and a second setting permitting the first valve to move away from the first valve seat to permit and regulate flow through the pressure regulator and to cause the wiper to wipe across the filter element in a second direction to clean the filter element.