Patent ID: 8043176

Claim:
A rotary arrowhead assembly for impacting on a target, the assembly comprising a first blade comprising a tip, a cylindrical body, a tubular body, a firing pin, a blade tube comprising at least one blade extending away from said blade tube, a torsion spring, a push spring, a plurality of roll pins, and a coupling shaft, wherein said first blade is removably attached to said cylindrical body and is secured to said cylindrical body by way of at least two roll pins, wherein said cylindrical body is removably coupled to and received within said tubular body, wherein said firing pin is removably secured within said cylindrical and tubular bodies and within said blade tube in the assembly before impact of the assembly upon a target, wherein said cylindrical and said tubular bodies as removably coupled to one another are received in a hollow inner portion of said blade tube, wherein said blade tube is retained on the assembly by said tubular body and by said coupling shaft, wherein said torsion spring is compressed within said blade tube during before impact, and wherein said blade tube is precluded from rotating about said cylindrical and tubular bodies before impact.