Abstract: An isolator performance data logging system comprising a displacement unit for measuring a displacement of the isolator. the displacement unit comprises a displacement sensor housing fixable relative to a mitigated end of the isolator, a target fixable relative to an unmitigated end of the isolator. A displacement sensor is located within the displacement sensor housing for measuring a displacement of the target relative to the displacement sensor. A first accelerometer unit is fixable relative to the mitigated end of the isolator. A second accelerometer unit is fixable relative to the unmitigated end of the isolator.

Abstract: A locking positioning pin assembly comprising a shaft extending between opposing first and second ends, a nut threadably engaged with the shaft and rotatable to thread along the shaft between a closed position relatively closer to the first end of the shaft and an open position relatively closer to the second end of the shaft, a knob having a plunger, the knob rotatable about the shaft to cause rotation of the nut. When the nut is in the open position, the knob is translatable to allow the plunger to move between a disengaged position and an engaged position. When the nut is in the closed position, the plunger is in an engaged position and is prevented from translating relative to the nut and the shaft due to abutment of the knob with one or more features of the nut.

Abstract: A locking positioning pin assembly comprising a shaft extending between opposing first and second ends, a nut threadably engaged with the shaft and rotatable to thread along the shaft between a closed position relatively closer to the first end of the shaft and an open position relatively closer to the second end of the shaft, a knob having a plunger, the knob rotatable about the shaft to cause rotation of the nut. When the nut is in the open position, the knob is translatable to allow the plunger to move between a disengaged position and an engaged position. When the nut is in the closed position, the plunger is in an engaged position and is prevented from translating relative to the nut and the shaft due to abutment of the knob with one or more features of the nut.

Abstract: An isolator performance data logging system comprising a displacement unit for measuring a displacement of the isolator. the displacement unit comprises a displacement sensor housing fixable relative to a mitigated end of the isolator, a target fixable relative to an unmitigated end of the isolator. A displacement sensor is located within the displacement sensor housing for measuring a displacement of the target relative to the displacement sensor. A first accelerometer unit is fixable relative to the mitigated end of the isolator. A second accelerometer unit is fixable relative to the unmitigated end of the isolator.

Abstract: A suspension pedestal may be employed with a vehicle seat (e.g. a boat seat). The suspension pedestal comprises a piston partially received within a base, and an isolator to mitigate relative movement between the base and piston. A flange extends circumferentially around the base, and is releasably fixable to the base at any point between the ends of the base.

Abstract: A suspension system has an isolator cylinder with a primary reservoir having a primary reservoir volume, a secondary reservoir having a secondary reservoir volume, a manifold and a primary duct fluidly connecting the primary and secondary reservoirs for controlling the flow rate of the fluid between the primary and secondary reservoirs, and optionally a valve for controlling a flow rate of a fluid through the duct, and a control system for operating the valve. A shock absorption system for a vehicle seat is provided comprising an isolator with at least one secondary pneumatic reservoir connected with a fluid duct to the primary reservoir of an isolator. The reservoir volumes, length and cross sectional area of the connecting duct and fluid flow control valves may be determined using methods including algorithms, experimental testing and models to determine the optimal values to achieve consistent shock mitigation across a range of seat loads.