An initiator head includes a housing piece defining an interior chamber, a circuit board supported in the interior chamber, a line-in terminal coupled to the circuit board, and insulating material filling the interior chamber and covering a top surface of the circuit board for absorbing shocks or vibrations and electrically insulating electronics of the circuit board.

An initiator head includes a housing piece defining an interior chamber, a circuit board supported in the interior chamber, a line-in terminal coupled to the circuit board, and insulating material filling the interior chamber and covering a top surface of the circuit board for absorbing shocks or vibrations and electrically insulating electronics of the circuit board.

An initiator assembly with a housing, an exploding foil initiator, an input charge, which is formed of an energetic material, and a support plate. The exploding foil initiator has a base coupled to the housing, a bridge mounted to the base, a flyer overlying the bridge, and a barrel. The barrel is coupled to the base and defines a channel through which the flyer traverses when the exploding foil initiator is activated. The support plate supports an axial end of the input charge and is interposed in a path of travel of the flyer between the bridge and the input charge. A related method is also provided.

The invention relates to an ignition capsule for a gas generator of an occupant restraint system in a motor vehicle, in particular for the gas generator of an inflatable airbag, said ignition capsule comprising means for supporting extremely high pressures during ignition.

An electro-pyrotechnical igniter includes a metal case, a cap and a plastic overmolding. The metal case contains pyrotechnical material and includes at least one vent on a side wall thereof. The cap is made from electrically insulating material and covers the metal case at least at the at least one vent. The plastic overmolding covers at least one end of the cap. The metal case includes at least one shoulder arranged between the side vent and a zone of the metal case across from the end of the cap covered by the overmolding.

An electro-pyrotechnical igniter includes a metal case, a cap and a plastic overmolding. The metal case contains pyrotechnical material and includes at least one vent on a side wall thereof. The cap is made from electrically insulating material and covers the metal case at least at the at least one vent. The plastic overmolding covers at least one end of the cap. The metal case includes at least one shoulder arranged between the side vent and a zone of the metal case across from the end of the cap covered by the overmolding.

A metal fixing material leadthrough for igniters of airbags and/or belt tighteners includes at least one metal pin fused into a glass or glass-ceramic fixing material in a through-opening of a main body. The metal is present in a post-heated state, with an interface between the fixing material and the metal pin and an additional interface between the fixing material and an inner surface of the through-opening. The at least one metal pin, at least in its core region, consists of stainless steel, such as a chromium-containing stainless steel, the stainless steel having a thermal expansion coefficient.

In an aspect of the invention there is provided an integrated circuit initiator device that comprises a circuit substrate provided with an electrical insulating layer; an electrical conducting bridge circuit deposited on the insulating layer; said bridge circuit patterned as contact areas and a bridge structure connecting the contact areas, said bridge structure arranged for forming a plasma when the bridge structure is fused by a initiator circuit that contacts the contact areas; and a polymer layer that is spin-coated on the bridge structure, for forming a flyer that is propelled away from the substrate.

In an aspect of the invention there is provided an integrated circuit initiator device that comprises a circuit substrate provided with an electrical insulating layer; an electrical conducting bridge circuit deposited on the insulating layer; said bridge circuit patterned as contact areas and a bridge structure connecting the contact areas, said bridge structure arranged for forming a plasma when the bridge structure is fused by a initiator circuit that contacts the contact areas; and a polymer layer that is spin-coated on the bridge structure, for forming a flyer that is propelled away from the substrate.

A method of manufacturing a metallic case of a pyrotechnical igniter having a wall with at least one weak zone and an inner surface in the case with at least one part facing this at least one weak zone includes positioning the case on a matrix having a plane zone. The method further includes striking the wall with at least one punch so as to, in a single movement of striking, deform at least the part of the inner surface facing this at least one weak zone and having at least one initially curved-in zone in order to bring it on the plane zone and to form in this manner a plane inner surface, and to form the at least one weak zone.