Patent ID: 8678157

Claim:
An isolating decoupler comprising: a shaft; a pulley rotationally engaged with the shaft; a coil spring engaged between the pulley and a spring carrier, the spring carrier moveable relative to the shaft and pulley; a one-way clutch mounted to the shaft; a first torsion spring and a second torsion spring engaged between the spring carrier and the one-way clutch, the first torsion spring and the second torsion spring having a releasable frictional engagement with the one-way clutch; the first torsion spring and the second torsion spring comprising adjacent parallel strands and having substantially equal diameters; the first torsion spring and the second torsion spring each being engagable with the pulley; the first torsion spring releasing a frictional engagement with the one-way clutch upon an engagement with the pulley; and the second torsion spring releasing a frictional engagement with the one-way clutch upon an engagement with the pulley.