Patent ID: 7717814

Claim:
An arrow broadhead adapted for attaching to an open end of a hollow arrow shaft, the broadhead adapted for moving from a retracted position during arrow flight to an extended position when contacting a target, the broadhead comprising: a rotating, sliding shaft having a pointed tip, said pointed tip disposed in a front portion of said shaft, said pointed tip tapered rearwardly and outwardly forming a tip base; at least two cutting blades pivotally attached to said tip base, said blades including an outer cutting edge and an inner edge, the inner edge of said blades including a beveled cam surface; a sliding shaft housing having a bore hole therein and a lower end, said sliding shaft housing receiving said rotating, sliding shaft therein, a lower end portion of said sliding shaft received in said bore hole, the lower end of said sliding shaft housing adapted for receipt inside the open end of the hollow arrow shaft; a coil spring mounted inside said bore hole and engaging a portion of said shaft, said coil spring biasing said shaft, said pointed tip and said blades forward toward the direction of the target; and blade retraction means disposed on the inner edge of said blades and on said sliding shaft housing for holding said blades in a retracted position during arrow flight; whereby, when said pointed tip contacts a target, said sliding shaft moves rearward into said bore hole, said blade retraction means releases said blades from said sliding shaft housing, and the beveled cam surface of said blades contacts a side of said sliding shaft housing and moves said blades outwardly from a folded, retracted position into an extended position.