Patent ID: 8496095

Claim:
A dynamic displacement energy management device comprising: a housing; an anchor interfacing at least one connecting member and configured to receive an input load; a load bearing movable member securable to said connecting member; at least one deformable member disposed within said housing; a return assist member biasing said load bearing moveable member against a direction of load applied to said anchor; and an inertial interlock that controls movement of said anchor, said inertial interlock including a rotating member and a sliding member, said rotating member operable to: engage said sliding member to restrict movement of said load bearing member under static load conditions applied to said anchor, permit said sliding member to bypass said rotating member under dynamic load conditions applied to said anchor, such that said at least one deformable member absorbs at least a portion of energy from said dynamic load, and re-engage said sliding member upon conclusion of said dynamic load conditions and return of said sliding member by said return assist member.