Abstract: A ball lock includes a body having a shaft with at least one retention feature disposed at a distal portion of the shaft. The body of the ball lock may also define a central chamber and an access slot open to the central chamber. The ball lock may include a spindle disposed within the central chamber of the body. The spindle may be in either a locked position or an unlocked position. The ball lock may further include an indicator coupled to the spindle and viewable to a user via the access slot, wherein the indicator is configured to indicate to the user whether the spindle is in the locked position or the unlocked position.

Abstract: A light system for an evacuation slide may include a readiness indicator light assembly. The readiness indicator light assembly may comprise a first light emitting diode configured to emit a first color and a second light emitting diode configured to emit a second color. The light system may be configured to power the first light emitting diode after initial deployment of the evacuation slide and to power the second light emitting diode after the internal pressure of the evacuation slide is greater than a minimum pressure threshold.

Abstract: An inflatable slide may comprise a ramp portion and a slide portion having a head end attached to the ramp portion and a toe end opposite the head end. A ramp barrier readiness indicator may include a bendable portion located proximate the head end of the slide portion. The ramp barrier readiness indicator may be configured to pivot between a raised position and a lowered position in response to inflation of the slide portion.

Abstract: An inflatable slide may comprise a ramp portion and a slide portion having a head end attached to the ramp portion and a toe end opposite the head end. A safety gate readiness indicator may be located between the head end of the slide portion and an entrance of the ramp portion. The safety gate readiness indicator may be configured to translate between a transverse position and an erect position.

Abstract: The present disclosure provides a truss strap integrated geometric restraint for an evacuation slide. The truss strap integrated geometric restraint may comprise a first strap configured to be coupled to a first portion of the evacuation slide, a second strap configured to be coupled to a second portion of the evacuation slide, and a third strap detachably coupled to a third portion of the evacuation slide and configured to disengage from the portion of the slide in response to a predetermined force acting on the release mechanism, wherein the truss strap integrated geo restraint is configured to increase beam strength of the evacuation slide.

Abstract: An inflatable head restraint system for a parachute assembly may comprise an inflatable volume configured to inflate in response to a deployment of the parachute assembly. The inflatable volume may be located between a left shoulder riser and a right shoulder riser of the parachute assembly. A conduit may be fluidly coupled to the inflatable volume.

Abstract: A sill height morphing feature may comprise an upper chamber comprising an orthogonal foot section and a first foot tube, a lower chamber, relatively below the upper chamber, coupled to the upper chamber and comprising a second foot tube, a sliding surface between the upper chamber and the lower chamber, wherein the first foot tube lies relatively beneath the sliding surface, wherein the second foot tube lies relatively beneath the sliding surface and relatively behind and proximate to the first foot tube, wherein the sliding surface is coupled to the first foot tube at a top surface of the first foot tube.

Abstract: An integrated spoiler may comprise a side tube having a tube wall, wherein the tube wall has a first edge and a second edge, wherein the first edge is disposed proximate a portion of the tube wall; a seam proximate the first edge and the portion of the tube wall; a coupling across the seam configured to inhibit the exchange of gas across the seam; a flap comprising the second edge and extending outward of the seam; and a ligament. The flap may further comprise an angle ? between the flap and an outer surface of the tube wall wherein the ligament is configured to restrain angle ? at a maximum. The flap may be configured to pivot about the seam through angle ? in response to an aerodynamic force.

Abstract: An evacuation slide may comprise an inflatable side rail extending from a head end to a toe end of the evacuation slide. A lifeline-geometric restraint may be coupled to the inflatable side rail. A restraint pin may be coupled to the lifeline-geometric restraint. A first loop may be coupled to a first location on the evacuation slide. A second loop may be coupled to a second location on the evacuation slide. The first loop may be configured to receive the second loop and the second loop may be configured to receive the restraint pin when the evacuation slide is in a folded position. The restraint pin may be configured to translate out the second loop in response to an internal pressure of the evacuation slide exceeding a predetermined internal pressure.

Abstract: An evacuation slide for an aircraft may be deployable in a slide mode and a raft mode. The evacuation slide includes a head end and a toe end, with the head end having a mounting feature and the toe end being longitudinally opposite the head end. In response to the evacuation slide being in the slide mode, the head end of the evacuation slide is mounted to the aircraft via the mounting feature. In response to the evacuation slide being in the raft mode, the evacuation slide is detached from the aircraft and the mounting feature is a boarding aid, according to various embodiments.

Abstract: An evacuation slide may comprise a first sill height compensating feature coupled to an upper main support tube and a second sill height compensating feature coupled to the upper main support tube, wherein the first sill height compensating feature and the second sill height compensating feature extend longitudinally past the sliding surface of the evacuation slide in response to the evacuation slide being deployed. The first sill height compensating feature and the second sill height compensating feature may be configured to increase a vertical distance between the upper main support tube and an exit surface in response to a sill height of the evacuation slide increasing.

Abstract: A boarding apparatus for use on a flotation device, in accordance with various embodiments is disclosed herein. The boarding apparatus comprises a stirrup ladder. The boarding apparatus may be integral to a lifeline assembly of the flotation device. The boarding apparatus may be removably coupled to a loop patch of the flotation device. The boarding apparatus may release from the loop patch and become a boarding configuration for the flotation device.

Abstract: An orientation valve, in accordance with various embodiments, is disclosed herein. The orientation valve may comprise a first coupling portion, an insert portion, a second coupling portion, an internal cavity, and a piston. The insert portion may have a first inlet aperture and a second inlet aperture. The second coupling portion may be disposed between the first coupling portion and the insert portion. The internal cavity may be coupled to the first inlet aperture and the second inlet aperture. The piston may be disposed within the internal cavity. The orientation valve may be configured to block fluid flow from a compressed fluid source when an evacuation system is in a stored position. The orientation valve may be configured to fluidly couple the compressed fluid source and the evacuation device when the evacuation system is in a deployed position.

Abstract: An evacuation slide may comprise a first sill height compensating feature coupled to an upper main support tube and a second sill height compensating feature coupled to the upper main support tube, wherein the first sill height compensating feature and the second sill height compensating feature extend longitudinally past the sliding surface of the evacuation slide in response to the evacuation slide being deployed. The first sill height compensating feature and the second sill height compensating feature may be configured to increase a vertical distance between the upper main support tube and an exit surface in response to a sill height of the evacuation slide increasing.

Abstract: A releasable restraint for an inflatable slide is disclosed, in accordance with various embodiments. The releasable restraint may comprise a first mating portion having a receptacle. The releasable restraint may comprise a second mating portion having a protrusion. The protrusion may be configured to fit within the receptacle. An adjustment fastener may be coupled to the receptacle and configured to adjust a coupling strength of the releasable restraint.

Abstract: An aspirator system for inflating an inflatable evacuation device includes an aspirator body having a plurality of flapper doors configured to open to allow intake of atmospheric gas. The aspirator system also includes an aspirator barrel connecting the aspirator body to the inflatable evacuation device, having connected inflation chambers wrapping around a circumference of the aspirator barrel and arranged along a length of the aspirator barrel, and being configured to provide an aspirator barrel chamber for guiding the atmospheric gas to the inflatable evacuation device when the aspirator barrel is inflated. The aspirator system also includes a showerhead nozzle connected to the connected inflation chambers, configured to direct high-pressure gas to inflate the aspirator barrel and compel intake of atmospheric gas through the plurality of flapper doors, to inflate the inflatable evacuation device.

Abstract: An evacuation assembly may comprise an evacuation slide and a first yoke coupled to the evacuation slide. The first yoke may comprise a first strap and a second strap. The first strap may be longer than the second strap. The evacuation assembly may optionally include a second yoke coupled to the evacuation slide. A first strap of the second yoke may be longer than a second strap of the second yoke.

Abstract: A support arrangement for an inflatable evacuation system may comprise an inflatable member configured to be elongated and stiffened in a longitudinal direction in response to being in an inflated condition, a protrusion extending orthogonal to a surface of the inflatable member, a tensile member attached at at least two locations to the inflatable member on opposing sides of the protrusion and being slidably engagable over the protrusion so as to maintain about equal tension in the tensile member on opposing sides of the protrusion, and a sleeve attached to the protrusion configured to maintain the tensile member laterally relative to the protrusion even as the tensile member is able to slide longitudinally.

Abstract: An inline for an inflatable assembly may comprise a first end defining a primary gas inlet and a second end defining a primary gas outlet. An internal surface may define a flow path extending from the primary gas inlet to the primary gas outlet. An orifice may be located between the first end and the second end. The orifice may be defined, at least partially, by a radial wall extending from the internal surface to the external surface. The orifice may be configured to entrain ambient air with a primary gas flowing from the primary gas inlet to the primary gas outlet.

Abstract: A slide for an evacuation system may comprise an inflatable slide rail structure. An aspirator may be fluidly coupled to the inflatable slide rail structure. An aspirator retention strap may be coupled between the aspirator and the inflatable slide rail structure. The aspirator retention strap may comprise an elastic material. The aspirator retention strap may be configured to stretch when a predetermined internal pressure threshold of the inflatable slide rail structure is exceeded.