Patent ID: 6758234
Filing Date: 2004-07-06
Classification: F16K,G05D,Y10T

Abstract:
A valve assembly wherein the valve assembly includes: a valve port; a first opening; a second opening; a third opening; and a pressure sensitive member; the position of said pressure sensitive member capable of being altered solely in response to pressure changes within a fluid system to which said first opening is connected wherein said changes in the position of said pressure sensitive member cause said valve port to move either into or out of alignment with said second or said third opening so that said valve port is movable to each of the following positions: (1) at least partially aligned with said second opening but not said third opening, or (2) at least partially aligned with said third opening but not with said second opening, or (3) not aligned with either said second or said third openings; the valve assembly including a relief outlet; and being configured so that the position of said pressure sensitive member will alter to an extent that enables said pressure sensitive member to move said relief outlet and said valve port into alignment with one another when a predetermined pressure limit is reached in said fluid system.