Patent ID: 7803078

Claim:
A tensioner comprising: a base; a pivot arm pivotally engaged with the base; a torsion spring engaged between the base and the pivot arm for biasing the pivot arm; a first damping member and a second damping member disposed between the pivot arm and the base; the first damper comprising a ring with a plurality of planar members distributed around the circumference of the ring, each planar members engaged with the ring for a partial rotation thereon, each of the plurality of planar members having a first surface for frictionally engaging a pivot arm surface and an opposing second surface engagable with the second damping member; the second damping member comprising a radially extending flange frictionally engaged between a first portion surface and a second portion surface, the first portion surface fixed to the base; the torsion spring is in pressing engagement with the second damping member against the base; and the second damping member frictionally engaged between the first damping member and the base.