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Compound bow

  • US 5,388,564 A
  • Filed: 01/05/1994
  • Issued: 02/14/1995
  • Est. Priority Date: 01/05/1994
  • Status: Expired due to Fees
First Claim
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1. An archery bow comprising a riser having an upper end and a lower end, upper and lower limbs each having an inboard end affixed respectively to the upper and lower ends of said riser, a bowstring connecting outboard ends of said upper and lower limbs, and synchronizing means for ensuring equal flexing of said upper and lower limbs upon draw and release of said bowstring;

  • each of said upper and lower limbs includinga spring limb member having an inboard end affixed to the respective end of said riser, and an outboard end;

    a cam pulley pivotally mounted on the outboard end of the respective spring limb member;

    a rigid limb member having an inboard end fixed to said cam pulley and an outboard end to which said bowstring is attached;

    a flexible inextensible cable extending from the respective end of said riser passing over a periphery of said cam pulley with an end thereof attached to said cam pulley; and

    a link member coupled between a point fixed with respect to said cam pulley and said synchronizing means to move said synchronizing means with movement of said cam pulley.

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