Improvements in or with respect to a security device

摘要

An inflatable element, which is designed for this purpose, with gas from a gas generator (2) to be inflated, comprises a flow passage of gas (6), which the gas generator to a plurality of cells (8, 9, 10, 11, 12), which are to inflate. An elongated element (20) with a plurality of substantially helical turns is located within the flow passage of gas, wherein the axis of the elongated element coincides essentially thus.