Patent ID: 7370667
Filing Date: 2008-05-13
Classification: G05D,Y10T

Abstract:
1. A fluid pressure regulator comprising a regulator housing having an inlet end and an outlet end; a flow tube extending between said inlet end and said outlet end, said flow tube incorporating a double bend intermediate opposite ends of said flow tube, and having an opening therein on one side of said double bend; a flexible boot covering said opening; a hollow piston located at a downstream location relative to a mid-portion of said flow tube in a direction of flow of fluid through the regulator housing; a first chamber above said piston, and at least one passage establishing fluid communication between said outlet end and said first chamber; and a pinch arm pivotally mounted at one end within said regulator housing and movable in response to movement of said piston by an increase in fluid pressure in said first chamber so that an opposite end of said pinch arm will project through said opening and move said flexible boot towards the other side of said double bend to thereby restrict flow through said flow tube.