Patent ID: 8387603
Filing Date: 2013-03-05
Classification: F41B

Abstract:
1. A compound archery bow that includes: a bow handle having projecting limbs, a first pulley mounted on a first of said limbs for rotation around a first axis, a second pulley mounted on a second of said limbs for rotation around a second axis, bow cable means including a bowstring cable extending from a first bowstring anchor through a first bowstring let-out groove on said first pulley across said handle to a second bowstring let-out groove and a second bowstring anchor on said second pulley, a first power cable extending from a first power cable anchor at said first pulley across said handle to a first power cable take-up groove and a second power cable anchor on said second pulley, a second power cable extending from a third power cable anchor at said second pulley across said handle to a second power cable take-up groove and a fourth power cable anchor on said first pulley, such that draw of said bowstring cable away from said handle lets out bowstring cable from said first and second bowstring let-out grooves, rotates said first and second pulleys around said axes, and takes up said first and second power cables into said first and second power cable take-up grooves on said pulleys, wherein said first and second bowstring let-out grooves are aligned across said handle and coplanar with each other in a bowstring plane, said first and second power cable take-up grooves are disposed on one side of said plane, a third pulley is mounted on said handle adjacent to said first limb for rotation around a third axis, said third pulley having a third take-up groove on one side of said plane and a third let-out groove on an opposing side of said plane, a fourth pulley is mounted on said handle adjacent to said second limb for rotation around a fourth axis, said fourth pulley having a fourth take-up groove on said one side of said plane and fourth let-out groove on said opposing side of said plane, said first power cable includes a first section extending from said first power cable anchor at said first pulley through said third take-up groove on said third pulley to a first intermediate anchor, and a second section extending from a second intermediate anchor on said third pulley through said third let-out groove on said third pulley to said second pulley, and said second power cable includes a first section extending from said second power cable anchor at said second pulley through said fourth take-up groove on said fourth pulley to a third intermediate anchor on said fourth pulley, and a second section extending from a fourth intermediate anchor on said fourth pulley through said fourth let-out groove on said fourth pulley to said first pulley.