Patent ID: 8684869

Claim:
An arrowhead mechanical blade retention system, comprising: a bifurcated body defining a channel and terminating at a first end with an arrowhead tip; first and second blades pivotal within said channel about a pintle from at least a flight position where said first and second blades are generally longitudinally aligned with a longitudinal axis of said bifurcated body to at least a deployed position where said first and second blades are substantially transverse to said longitudinal axis of said bifurcated body; and first and second blade bumps affixed with said first and second blades, respectively; said first blade bump opposed with and interfering with said second blade bump when said first and second blades are operatively set to said flight position and rotated in opposite directions about said pintle from said flight position towards said deployed position, said interference operatively retaining said first and second blades in said flight position.