Abstract: A pyrotechnic electrical generator including an initiator charge mechanism, one or more field poles and an armature that creates a magnetic field, and a coil that produces an electric current is disclosed herein. The armature is positioned within a bore extending through the one or more field poles, and the initiator charge mechanism is positioned in proximity to the armature. The initiator charge mechanism when activated creates a pressure that drives the armature from one end of the bore to the other end of the bore. As the armature travels through the field poles, it creates an alternating magnetic flux in the field poles inducing an alternating current in the coil. The coil then carries the current to a storage device, for example a capacitor and/or battery, or applies the current to one or more other devices as an ignition charge.

Abstract: A pyrotechnic electrical generator including an initiator charge mechanism, one or more field poles and an armature that creates a magnetic field, and a coil that produces an electric current is disclosed herein. The armature is positioned within a bore extending through the one or more field poles, and the initiator charge mechanism is positioned in proximity to the armature. The initiator charge mechanism when activated creates a pressure that drives the armature from one end of the bore to the other end of the bore. As the armature travels through the field poles, it creates an alternating magnetic flux in the field poles inducing an alternating current in the coil. The coil then carries the current to a storage device, for example a capacitor and/or battery, or applies the current to one or more other devices as an ignition charge.

Abstract: A separable threaded fastener tightened to hold two objects together with an axial preload on the fastener. Fastener structure minimizes mechanical shock loads on contiguous structures when elements of the fastener are abruptly separated from one another to release the objects. A stator and a rotor having ramp surfaces provide for relief of the axial preload at the time of separation thereby reducing mechanical shock on contiguous structures.

Abstract: A gas generator to provide gases under pressure for an air bag. A combustion chamber and an auxiliary chamber contain a fluid gas-generating charge which is auto-ignitable. The combustion chamber has a burst portion which bursts after ignition, and the generated gases flow from it to the air bag. A conduit interconnects the two chambers. For a low pressure/high temperature regime the conduit acts as a flame suppressor to prevent flame from entering the auxiliary chamber so combustion can occur in the auxiliary chamber. For a high pressure/low temperature regime the conduit is a nozzle which passes the flame. Combustion then occurs in both of the chambers.

Abstract: This inflator of this invention includes a casing with a chamber containing an oxidizer gas. An exit port is located at one end of the casing which is closed by a burst disk. An exit tube extends into the chamber from the exit port to provide an orderly path for generated gases to leave the chamber. A fuel cell holding a liquid fuel is located at another end of the casing. A piston is driven in the fuel cell by gases from an igniter to drive the liquid fuel into the chamber. An igniter channel interconnects a region containing hot gases from the igniter to a region in the chamber where the liquid fuel and the oxidizer gas are mixed together. An injector tube conveys the fuel from a discharge end of the liquid fuel cell to a combustion region adjacent the igniter channel.

Abstract: A gas generator to provide gases under pressure to inflate a vehicular air bag. A capsular enclosure contains a fluid gas-generating charge. The enclosure has a non-pyrotechnic initiator, a frangible wall portion, and a chamber with a major portion of its volume on the other side of the frangible wall portion from the initiator. Various chamber and nozzle configurations provide for different initial pressures and temperatures, and times from maximum pressure or ambient pressure. Successive bursts are possible.

Abstract: A gas generator for a vehicular air bag. A capsular enclosure forms a reaction chamber with a wall having a frangible portion. An electrically-conductive, heat-generating initiator inside the chamber initiates a liquid gas-generating charge that is auto-ignitable by the initiator. Its reaction is self-sustaining after ignition. The gas generated bursts the frangible portion and supplies the air bag. The active components of the charge are nitrous oxide and oxygen.

Abstract: A cutting type rescue tool having a body with an axis of actuation. A spacer on the body spaces a reaction arm, which reaction arm extends across the axis. An actuator barrel contains a piston from which a piston rod extends to a cutting blade that faces the reaction arm. The actuator barrel is slidably mounted in the body and is retained thereto. Braking shoulders on the actuator barrel and on the body oppose a decelerator device which reduces impact forces between the actuator barrel and the body, after the piston bottoms on the actuator barrel.