Patent ID: 8469843
Filing Date: 2013-06-25
Classification: F42B

Abstract:
1. In an expandable arrowhead having a blade movable between a retracted position and an expanded position, including a blade-carrying body having a slot, at least a portion of said blade movably mounted within said slot, said blade having an opening, a shaft mounted within said opening, and said blade pivoting and translating with respect to said blade-carrying body when moving between said retracted position and said expanded position, the improvement comprising: in the retracted position a portion of said blade contacting a sidewall of said blade-carrying body, and a contact area between said portion and said sidewall releasably holding said blade into said retracted position during a launch force generated when launching said expandable arrowhead and said contact area releasing said blade from said retracted position when an impact force is applied to said blade, wherein said blade has an impact portion and a cutting portion, at least a portion of said blade is movably mounted within said slot, and said impact portion and said cutting portion are on opposite sides of said slot, and said impact portion and said cutting portion are on opposite sides of a longitudinal axis of said blade-carrying body.