Patent ID: 8261893

Claim:
A suspension damper operable between a compressed position and an extended position, comprising: a compression chamber having a volume reducing in response to operation of the suspension damper from the extended position to the compressed position; a rebound chamber having a volume reducing in response to operation of the suspension damper from the compressed position to the extended position; a reservoir chamber; damping fluid for flowing between the chambers and gas disposed in the reservoir chamber; an inertia valve, including a valve member comprising a substantial inertia mass and being slideably mounted and moveable relative to a first fluid path, at least substantially closing the first fluid path between the compression and reservoir chambers when in a closed position and movable to an open position in response to an acceleration of at least a portion of the suspension damper, such acceleration equaling or exceeding a first threshold, a blowoff valve at least substantially closing a second fluid path between the compression and reservoir chambers when in a closed position and movable to an open position in response to pressure in the compression chamber equaling or exceeding a second threshold, wherein the second threshold is operable so the blowoff valve opens in response to a severe shock and remains closed in response to a mild and medium shock; and a pressure relief valve at least substantially closing a third fluid path between the compression and reservoir chambers when in a closed position and movable to an open position in response to pressure in the compression chamber equaling or exceeding an externally adjustable third threshold.