Bowtech, Inc.

Dylan G Rinker

Nicholas C Obteshka

Allen C Rasor, Jr

Tony E Hyde

Christopher J Eacker

Jack B Smith

Allen C Rasor

A pulley assembly for a compound archery bow comprises an axle, a draw cable pulley, and a pair of split-buss let-out pulleys positioned on opposite sides of the draw cable pulley. Each secondary cable of a split-buss end of a power cable is wound in a spiral arrangement around a corresponding split-buss let-out pulley. As the bow is drawn, the pulley assembly rotates, the draw cable pulley lets out a draw cable, and each split-buss let-out pulley lets out the corresponding secondary cable. The spiral arrangement results in lateral movement, away from the draw cable pulley, of a contact point of the corresponding secondary power cable on each split-buss let-out pulley as the bow is drawn. The spiral arrangement can include a corresponding spiral groove on each split-buss let-out pulley.

Spiral-wound split-buss let-out mechanism for a compound archery bow

A pulley assembly for a compound bow comprises a draw cable pulley, a power cable pulley attached to the draw cable pulley, and a cable deflector attached to the power cable pulley or the draw cable pulley and adjustable among multiple deflector arrangements. The cable deflector engages the power cable during a let-off portion of drawing of the bow after the power cable is taken up by the power cable pulley. Different deflector arrangements result in corresponding draw force curves for the bow that differ from one another with respect to one or both of (i) draw force let-off rate with respect to draw distance or (ii) hold weight at full draw. The adjustment can be performed without using a bow press and without derigging the bow.

Adjustable pulley assembly for a compound archery bow

A pulley assembly for a compound bow comprises a draw cable pulley and a dual-groove power module attached to the draw cable pulley and adjustable among one or more positions and two orientations. A power cable is taken up into one of the two grooves depending on the power module orientation. Changing the power module orientation the power module position alters one or more of the bow's draw force curve, stored energy, draw length, or draw weight.

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Eugene, OR, United States of America

Dylan G Rinker