Abstract: A fire extinguisher comprises a pressure bottle containing the fire extinguishing material and having mounted therein a diffuser-actuation housing. A source of pressurized gas is in at least one of the pressure bottle or the housing or may be in both. The housing has internal exhaust ports for permitting flow of the fire extinguishing material from the interior of the pressure bottle to the interior of the housing and external diffuser ports for delivering the fire extinguishing material from the interior of the housing to the area of a fire. Intermediate the internal exhaust ports and the external diffuser ports there is positioned a burst element, for interrupting the flow path between the internal exhaust ports and the external diffuser ports until the burst element is ruptured.

Abstract: The invention is directed to an actuation system that is contained within a divided pressure vessel which has two chambers under pressure, separated by a common partition and piston. The system is operated by causing an opening in the first chamber, creating a pressure differential between the two chambers which causes the piston to move and fluid to flow between the two chambers. Movement of the piston may or may not expose flow orifices between the two chambers. Pyrotechnic material is enclosed within the piston to generate combustion products for augmenting performance. The two chambers can be used to contain inert working gases or reacting fluids that are isolated from one another until the system is actuated.

Abstract: An inflator apparatus and method for inflating an inflatable device wherein a solid fuel material and nitrous oxide are stored in intimate contact and, when properly actuated, react to produce inflation gas for use in inflating the inflatable device.

Abstract: A new and improved fastenerless spring clip is provided for mounting an airbag module assembly in a fixed position behind a breakaway cover formed in the instrument panel of the vehicle. One end of the spring clip includes a slip-on connector which is adapted to slip-engage and self-lock onto a wall surface of the airbag module without requiring special tools or additional fasteners such as rivets. The opposite end of the clip includes a snap-on connector which is adapted to snap-engage and self-lock onto a vehicle mounting bracket that is eventually secured to the vehicle behind the instrument panel.

Abstract: An airbag cushion which forms a linear arrangement of a plurality of compartements having a rectangular cross sectional shape with opposed longitudinal and lateral surfaces is provided. Each of the compartments is formed by the joinder of at least first and second panel members to form an interior chamber adapted to be filled with an inflation fluid upon deployment of the airbag cushion and a planar partition wall separating the interior chambers of adjacent compartments. The joinder of the at least first and second panel members for each of the compartments is effected from the outside of the compartment interior chambers. A method of fabricating an airbag cushion in the form of a linear arrangement of a plurality of compartments having a rectangular cross sectional shape with opposed longitudinal and lateral surfaces is also provided.

Abstract: An air bag assembly includes an inflatable device having a deflated condition; an inflator in fluid communication with the inflatable device and actuatable to provide inflation fluid for inflating the inflatable device from the deflated condition; a cover for housing the inflatable device and the inflator, the cover including a first portion and a second portion, the first portion and the second portion being pivotable to a closed condition and an open condition; and a strap for releasably retaining the first portion and the second portion in the closed condition, the strap having a rupturable portion, wherein the force of inflation of the inflatable device causes the rupturable portion to rupture and release the first portion and the second portion from the closed condition, thereby enabling the first portion and the second portion to pivot to the open condition and enabling inflation of the inflation device from the cover.

Abstract: An improvement in inflatable restraint air bag module assemblies with non-symmetric gas output inflators wherein a diffuser of specific design and in cooperation with the reaction canister results in reduced air bag deployment skewness.

Abstract: An inflator apparatus and method for inflating an inflatable device which rely on the formation and subsequent reaction of acetylene are provided.

Abstract: A check valve for an airbag cushion assembly permitting inflation gas to be rapidly received into an airbag cushion chamber from an inflation gas source through an inflation gas inlet opening in the fabric of the airbag cushion chamber and preventing flow of inflation gas back through the inflation gas inlet opening comprises a main fabric panel with a plurality of pleatable or foldable fabric tabs extending from a portion of the main fabric panel of the check valve and being non-rupturably secured to the fabric of the airbag cushion chamber.

Abstract: A snap-on mounting attachment is provided for securing an airbag inflator module having a base plate to the steering wheel of a motor vehicle. The mounting attachment includes two fastener studs extending rearwardly from the base plate, each fastener stud having a yieldable holding barb. Two capture brackets are mounted to the spokes of the steering wheel, and each capture bracket holds a snap receptor in floating encapturement therein, i.e., with a limited range of lateral and vertical movement. The snap receptors each have a metal ring embedded in a polymer shell and define a stud receiving opening therethrough with the metal ring defining a lip engaged by the holding barb of the fastener stud. Bias stops between the base plate and the steering wheel take up slack in the mounting attachment and eliminate rattles, and the polymer shell of the snap receptors also minimizes rattles.

Abstract: A simplified, low cost, passenger airbag module that is particularly suited for stamped steel construction and is easy to assemble, uses the inflator as a structural member, specifically, as an axial tension member, requires only one fastener member, and reduces the number of module parts to six (6) (excluding a decorative cover).

Abstract: An improved ignition system for inflators such as those used in airbag passive restraint systems is disclosed. A breakable seal is provided in a storage chamber for a combustible fluid. Upon activation of an initiator the breakable seal is opened and the combustible fluid flows from the storage chamber into a combustion chamber where it is ignited to provide an enhanced volume of heated gas. The heated gas may be used either to directly inflate an associated inflatable apparatus or it may be used to first heat a further compressed gas and the combined gases used to inflate an inflatable apparatus. The breakable seal may be opened by a piston driven plunger. The design of the components of the ignition system provides control over the inflation characteristics.

Abstract: A resistant initiator for an automobile passenger restraint system which includes a shell casing having an upper chamber and a lower chamber. Contact pins connect the initiator to a mating electrical connector of a vehicle. A metal oxide varistor disposed in the shell casing provides electrostatic discharge and EMI/RFI rotection for the initiator. A glass to metal seal header is formed in the shell casing and includes an integrated circuit for igniting the pyrotechnic material disposed in a charge holder attached to the shell casing.

Abstract: An airbag module featuring a reduced number of components is disclosed. The assembly of the module is simplified by the fewer number of components involved and by the use of a single fastener to hold the major components together as a module. The module comprises an inflator, an inflatable cushion, an optional cover and an optional insulator, all of which are held together by a single clamp.

Abstract: An integrated steering wheel and airbag module. The steering wheel includes a base having a mounting hole sized to receive an inflator. Received within the mounting hole is a resilient support block. The inflator is placed in the mounting hole over the support block, and a mounting plate clamps the inflator against the support block. The cushion may include tabs which extend through the mounting plate and are secured to fasteners. The inflator and cushion are thus secured using only the base of the steering wheel, the support block, and the mounting plate. A decorative cover completes the module, with a skirt of the cover being secured to the outer periphery of the steering wheel base.

Abstract: An apparatus for dynamic testing by rapidly accelerating a test specimen includes a sled carriage slidably mounted on first and second elevated horizontal tracks attached to a fixed foundation for free movement of the sled carriage along the tracks from a first to a second track location; the sled carriage having an essentially horizontal mounting plate terminating in a leading edge at one end and a trailing edge at an opposite end; and impact block mounted to the bottom surface of the mounting place intermediate the leading and trailing edges; a pressure differential firing component having a moveable thrust surface for striking the impact block; the pressure differential firing component attached to the foundation between the tracks so at least a portion of the bottom surface of the mounting plate of the sled carriage between the leading edge and the impact block can override at least a portion of a firing chamber component of the pressure differential firing component; a high pressure compressed gas storag

Abstract: An improved inflator featuring a more reliable and more readily assembled reservoir is described. The reservoir features an interlocking channel lock connection with an adapter which is separately attached to the inflator housing. The reservoir is particularly intended for storing liquid fuels, but is applicable to a variety of fluids.

Abstract: A snap-on mounting attachment is provided for securing an airbag inflator module having a base plate to the steering wheel of a motor vehicle. The mounting attachment includes two fastener studs extending rearwardly from the base plate, each fastener stud having a yieldable holding barb. Two capture brackets are mounted to the spokes of the steering wheel, and each capture bracket holds a snap receptor in floating encapturement therein, i.e., with a limited range of lateral and vertical movement. The snap receptors each have a metal ring embedded in a polymer shell and define a stud receiving opening therethrough with the metal ring defining a lip engaged by the holding barb of the fastener stud. Bias stops between the base plate and the steering wheel take up slack in the mounting attachment and eliminate rattles, and the polymer shell of the snap receptors also minimizes rattles.

Abstract: An airbag module providing adaptive performance. The module includes a housing defining an interior. At least an inflator is received within the housing, and preferably the folded, uninflated cushion, also. Various arrangements are provided to selectively block, or create, a vent extending through the housing. This vent, when open, permits the inflation gas provided by the inflator to exit the housing without entering the cushion. The vent may be initially open, and blocked by a sliding cover block, may be initially closed and opened by movement of a slide plug, or may be initially closed and opened by deformation of a portion of the housing. The venting of the inflation gas will at least slow the rate of inflation of the cushion, and may reduce the final pressure within the cushion. As such, the housing will be vented for less severe collisions, and will not be vented for more severe collisions.

Abstract: An airbag cushion has a deployment tube connected at its inner end to a backing plate securing an inflator and at its outer end to a cushion-shaping enclosure. The periphery of the cushion-shaping enclosure is attached there about to a boundary wall which extends inward to the backing plate at a location surrounding the inner end of the deployment tube. The boundary wall defines an aspirated-air chamber surrounding the tube. As the tube and cushion-shaping enclosure are inflated, the enclosure pulls the boundary wall out of the canister creating a vacuum in the aspirated-air chamber. A one-way valve in the backing plate passes aspirated air into the aspirated-air chamber. A port connects the cushion-shaping enclosure to the aspirated-air chamber to pressurize the aspirated-air chamber at the end of inflation. The one-way valve blocks escape of the pressure.