US Patent 7213839 Air-bag

An air-bag is disclosed which takes the form of an inflatable curtain, having a gas inlet neck to receive gas from a gas generator. The air-bag has a tether which extends from the exterior of the air-bag at a point adjacent to the gas inlet neck. Part of the tether is at least initially secured to a mount by a mounting arrangement, and the tether is yieldable such that, on deployment of the air-bag, the point from which the tether extends from the air-bag may move away from the mount so that the tether yields with the absorption of energy.