Patent ID: 9506714
Filing Date: 2016-11-29
CPC Classification: F41B

Claim Text:
1. A first pulley assembly for a compound archery bow, the first pulley assembly comprising a draw cable pulley and a dual-groove power module substantially rigidly attached to the draw cable pulley, wherein: (a) the draw cable pulley is structurally arranged so as to (i) define a first pulley assembly transverse rotation axis, (ii) be mounted on a first limb of an archery bow to rotate about the first pulley assembly axis, (iii) receive a first end of a draw cable of the bow in a circumferential draw cable groove of the draw cable pulley, and (iv) let out the first end of the draw cable from the draw cable groove when the bow is drawn and the draw cable pulley rotates about the first pulley assembly axis; (b) one or both of the draw cable pulley and the dual-groove power module are structurally arranged so as to enable substantially rigid, removable attachment of the dual-groove power module to the draw cable pulley in any one of one or more power module positions and, for each power module position, in any one of first or second power module orientations; (c) the dual-groove power module has opposite first and second faces, a first circumferential power cable groove adjacent the first face, and a second circumferential power cable groove adjacent the second face; (d) the dual-groove power module is structurally arranged, when attached to the draw cable pulley in the first power module orientation with the first face facing the draw cable pulley, so as to (i) receive a power cable of the bow in the first circumferential power cable groove, and (ii) take up the power cable into the first power cable groove when the bow is drawn and the draw cable pulley rotates about the first pulley assembly axis; (e) the dual-groove power module is structurally arranged, when attached to the draw cable pulley in the second power module orientation with the second face facing the draw cable pulley, so as to (i) receive the power cable of the bow in the second circumferential power cable groove, and (ii) take up the power cable into the second power cable groove when the bow is drawn and the draw cable pulley rotates about the first pulley assembly axis; and (f) for each one of the one or more power module positions, the first and second power module orientations result in corresponding draw force curves of the bow that differ substantially from each other.