Patent ID: 9310156
Filing Date: 2016-04-12
CPC Classification: F41B

Claim Text:
1. A projectile launcher comprising: a body having a rearward end, and a forward end; a pair of rigid arms, each having a pivot end pivotally coupled to opposing sides of the body proximate the forward end thereof and a distal end; a bowstring extending between the distal ends of the pair of arms and movable between a cocked position and a released position; a latch mechanism movable between a closed position, retaining the bowstring in the cocked position, and an open position, releasing the bowstring to allow movement to the released position; at least one tubular torsion bar coupled to the pair of rigid arms, the at least one tubular torsion bar movable between a mechanical energy storage configuration and a mechanical energy releasing configuration; and a mechanical energy delivery system coupling the at least one tubular torsion bar to the pair of rigid arms, the mechanical energy delivery system transferring mechanical energy to the at least one tubular torsion bar when the bowstring is moved from the released position to the cocked position, and transferring mechanical energy from the at least one tubular torsion bar to the pair of rigid arms to move the bowstring from the cocked position to the released position; an upper pulley pivotally coupling each of the pair of rigid arms to the body; at least one lower pulley coupled to the at least one tubular torsion bar and each upper pulley; and a cable coupled between the at least one lower pulley and the upper pulleys.