Patent ID: 7891348

Claim:
A compound crossbow comprising: a stock having a butt end and a fore end, said stock supporting a barrel, a hand grip, a release mechanism including a trigger, and a sight mount; a riser attached to the fore end of the stock and having a center section providing a mounting for an arrow rest; an arrow rest attached to the mounting; a pair of limbs mounted to the riser, each limb having a proximal end connected to the riser and a distal end terminating at a tip; a pair of idler spools, one mounted at each limb tip; a pair of pockets mounted to the riser, the proximal end of each limb being pivotally mounted in a respective one of said pockets; a limb bolt anchor pivotally connected to the riser by respective pylons adjacent each limb pocket; an adjusting bolt adjustably connecting each limb pocket to its respective limb bolt anchor whereby bowstring tension can be altered or eliminated; a pair of pylons, each comprising a pair side plates mounted on opposite sides of said riser; a pair of cam and intermediate spool assemblies, each supported by a respective one of said pylons between said plates; and a synchronization system constraining the cams to rotate in unison.