Patent ID: 8511446

Claim:
A shock absorber comprising: a pressure tube forming a fluid chamber; a first piston disposed within said working chamber, said first piston engaging said pressure tube to divide said fluid chamber into an upper working chamber and a lower working chamber, said first piston defining a piston compression passage and a piston rebound passage; a piston rod attached to said first piston, said piston rod extending through one end of said pressure tube; a first valve assembly including a first valve disc engaging said first piston; a second valve assembly engaging said first piston; a second piston engaging said pressure tube, said second piston disposed within one of said upper and lower working chambers, said second piston defining a fluid passage; a normally open piston velocity sensitive valve attached to said piston rod, said piston velocity sensitive valve including a second valve disc movable between an open position and a closed position in response to a first predetermined velocity of said first and second piston with respect to said pressure tube; wherein said second valve disc directly engaging said second piston when said second valve disc is in said closed position.