Patent ID: 6878293
Filing Date: 2005-04-12
Classification: B01D,F16K,Y10T

Abstract:
1. A valve assembly comprising: an elongated valve body having a longitudinal axis and curved central portion, an inlet port in the central portion, a left first port, a left second port, a right first port and a right second port, the left first port and right first port being opposed; a rotatable deflector plate in the central portion of the valve body having a rotating vertical axis perpendicular to the longitudinal axis of the valve body and the periphery of the deflector plate is in fluid tight communication with the wall of the curved central portion, the deflector plate rotatable to direct a fluid entering the inlet port toward the left first port and left second port or to the right first port and right second port; an elongated piston having a left end cap and a right end cap freely axially slidable along the longitudinal axis of the valve body and configured to close the left second port or right second port depending on the position of the deflector plate; wherein when the deflector plate is positioned to divert fluid to the right, the right first port is open and the right cap closes the right second port and the left first port and left second port are open and when the deflector plate is positioned to direct flow to the left, the left second port is closed and the left first port is open and both the right first port and right second port are open.