US Patent 8485169 Single cam compound bow

Improved compound archery bow features a cable guard that separates the crossing inside cable segments allowing the intersection locus of the crossing cable inside segments to freely glide through the guard as the bow is drawn and released, a dual cam power pulley having a power lobe cam presenting a power cable race spiraling outward on a side face of an elliptical draw lobe cam presenting a draw-lobe cable race where the power cable winds as the inside drawstring cable segment unwinds from around the power cable race of the power lobe cam, and the outside drawstring cable segment unwinds from and winds-up around the draw-lobe cable race of the elliptical draw lobe cam as the bow is drawn and released, and bow-limb mounting and limb-pod structures at the respective ends of the bow riser for anchoring, aligning and supporting extending bow limbs for flexure.