The present invention provides a sealing structure of a sealed container in which an opening of a metallic cylindrical container is closed with a metallic closing member, wherein a gap between an inner wall surface on an side of the opening of the metallic cylindrical container and an outer surface of the metallic closing member that radially faces the inner wall surface is sealed with a seal member having been melted and solidified.

Energetic compounds based on bismuth salts with reduced toxicity that are obtained through the reaction of soluble bismuth salts with soluble salts of organic or inorganic energetic compounds based on azides, derivatives aromatic nitro compounds or nitrogenous heterocyclic compounds, together with the methods for their preparation and application.

An ignition device assembly includes an ignition device including an igniter body and an igniter collar member, and a housing including a tubular fixing portion to which the igniter collar member is fixed. The tubular fixing portion includes a crimping fixing portion. The igniter collar member includes a tubular wall portion having a tubular shape, made of metal, and including a connector connection space formed inside, the tubular wall portion being crimped by a crimping fixing portion, an opening end forming portion including a resin region portion and a metal region portion, extending from a tip side of the tubular wall portion and forming an opening end of the connector connection space, and a crimping tip surface opposing region portion. At least a part of the crimping tip surface opposing region portion is formed by the metal region portion.

A gas generator in which, between an ignition device and an inner cylindrical member, on a side of the lid wall portion, a transfer charge chamber is formed, and on a side of another end portion of a peripheral wall portion, a flow space is formed, the flow space being a space configured to allow combustion gas to flow in from the transfer charge chamber when an igniter is actuated, and being a space configured to allow the combustion gas to flow out to the outside of the inner cylindrical member when the igniter is actuated, and a total cross-sectional area of an inflow path serving a flow path through which the combustion gas flows from the transfer charge chamber into the flow space is configured to be smaller than a cross-sectional area of the flow space.

A gas generator including an outer vessel including a housing provided with a gas discharge port, the outer vessel accommodating therein an igniter and a gas generating agent, wherein any of surfaces of the outer vessel includes an annular fragile portion, and the annular fragile portion is a groove formed in a continuous annular shape or a groove formed in a discontinuous annular shape.

An inflator for generating inflation gases for a safety device includes a filter having a main body portion constructed of metal and an opening passing through the main body portion in an axial direction. The opening has a first end with a first diameter at a first axial side of the main body portion and a second end with a greater, second diameter at a second axial side of the main body portion. A plate disposed in the housing axially separates a filter chamber containing the filter and a combustion chamber containing at least one gas generant material. The plate includes a weakened zone which opens in response to an increase in pressure within the combustion chamber with a plurality of petals axially extending into the filter chamber. A first axially extending portion of the filter is adjacent the plate and opposes radial movement of the plurality of petals upon opening of the weakened zone into the filter chamber.

An active power blocking circuit in series with a squib. The active power blocking circuit may include a logic circuit, a first switch, a second switch, and an amplifier. The first switch may have a first side connected to a positive connection and a second side connected to a negative connection. The second switch may have a first side connected to the positive connection and a second side connected to the negative connection through a diode. The amplifier may be connected the second side of the second switch and the output of the amplifier may be connected to the logic circuit.

Various implementations include a self-coupling initiator including one or more integrated features that allow the initiator to be installed within a housing tube without a forming or fastening operation. The integrated features are able to be coupled to a drop protection cap. The drop protection cap extends around at least a portion of a head portion of the initiator and abuts the structure of the outer housing so that force imparted on the drop protection cap from a drop test is transferred to a direct compression load on the cap and housing, instead of the force being transferred to the initiator. In addition, the initiator may include one or more clip features that allow the initiator to clip into the housing. In such embodiments, the drop protection cap may also prevent the clips from being disengaged with the housing.

A method of controlling an airbag inflator, may include determining, when an occupant is accommodated on a seat, whether the weight of the occupant is in which of first to fourth weight ranges sequentially allocated by a controller, performing a first logic for operating an inflator at the lowest one of three intensities by the controller when it is determined that the weight of the occupant is in the lightest first weight range, and performing a second logic for operating the inflator at the intermediate intensity or a third logic for operating the inflator at the highest intensity by the controller, according to conditions such as a position of a seat, a state of operation of a recliner, a collision condition, a collision pulse, and wearing of a belt, when it is determined that the weight of the occupant is in the third or fourth weight range.

A pyrotechnical gas generator includes at least one pyrotechnical charge, at least one ignitor, and a cylindrical casing enclosing the at least one charge and the at least one ignitor, the cylindrical casing having an axial direction and a radial direction and including an annular wall extending along the axial direction of the casing, and gas ejection holes arranged on the annular wall. Each gas ejection hole extends in a output plane forming a non-zero angle with a tangential plane which is tangent to the annular wall at the gas ejection hole.