Patent ID: 7651130

Claim:
An airbag unit comprising: an airbag having an impact surface and adapted to be selectively inflatable to one of a first depth and a second depth greater than the first depth, the airbag including first and second outlet valves normally operative in a first state, the first state being one of an open state and a restricted state; a housing; a gas generator; a first tensioning member having first and second ends fixed proximate the impact surface and an intermediate portion therebetween normally retained proximate the housing; a second tensioning member having a first end fixed proximate the impact surface and extending to the first outlet valve to transition the first outlet valve from a first state to a second state when under tension; and a third member having a first end fixed proximate the impact surface and extending to the second outlet valve to transition the second outlet valve from the first state to the second state when under tension; wherein the first state is an open state and the second state is a restricted state.