Patent ID: 7681592

Claim:
A three-way poppet valve assembly comprising: a poppet valve body; a first poppet valve disposed in a valve guide within the body for linear motion along a poppet valve axis in a valve guide between first poppet valve open and first poppet valve closed positions; a first poppet valve seat, the first poppet valve seat being disposed in the poppet valve body so as to have freedom in a plane perpendicular to the poppet valve axis to be self centering when the first poppet valve contacts the first poppet valve seat when moving to the first poppet valve closed position, and when in the closed position, holding the first poppet valve seat against the poppet valve body; a second poppet valve connected to the first poppet valve, the poppet valve body having a second poppet valve seat, the second poppet valve being in the closed position when the first poppet valve is in the open position and being in the open position when the first poppet valve is in the closed position.