Abstract: Designs and methods are provided for a composite seat cushion comprising a molded portion made of a resilient foam material, having a sculpted top surface, and a bottom surface with a cavity therein. The composite seat cushion may further comprise an insert made of a viscoelastic foam material filling the cavity in the bottom of the molded portion.

Abstract: Methods and apparatus are provided for an energy attenuating seat assembly with multi-axis energy attenuation. In one embodiment the seat assembly comprises a seat with a back, a first energy attenuating support comprising a first seat guide, and a first energy attenuating link, the first energy attenuating support operatively disposed in a first direction with respect to the seat. The exemplary seat assembly further comprises a second energy attenuating support comprising a second seat guide, and a second energy attenuating link, the second energy attenuating support operatively disposed in a second direction with respect to the seat.

Abstract: Designs and methods are provided for an energy attenuating device. In one exemplary embodiment the device comprises an elongated metal tube having an expanded portion at a first end thereof, and an unexpanded portion extending from the expanded portion to a second end, wherein the first end is attached to a fixed structure. A mandrel is disposed in the expanded portion of the elongated metal tube, having a diameter greater than the inside diameter of the unexpanded portion of the metal tube. A tension member is attached to the mandrel and extends out of the second end of the metal tube.

Abstract: Methods and apparatus are provided for an energy attenuating seat and litter support for use in a vehicle. In one exemplary embodiment the energy attenuating seat and litter support includes a seat with a folding back that is lockable in both an upright position for seating, and a folded down, horizontal position. The exemplary embodiment may further comprise a litter mounting fixture accessible when the seat back is in the folded down, horizontal position, and an energy attenuation device disposed to provide energy attenuation for a litter supported by the litter mounting fixture.

Abstract: Methods and apparatus are provided for an energy attenuating seat assembly with multi-axis energy attenuation. In one embodiment the seat assembly comprises a seat with a back, a first energy attenuating support comprising a first seat guide, and a first energy attenuating link, the first energy attenuating support operatively disposed in a first direction with respect to the seat. The exemplary seat assembly further comprises a second energy attenuating support comprising a second seat guide, and a second energy attenuating link, the second energy attenuating support operatively disposed in a second direction with respect to the seat.

Abstract: Designs and methods are provided for a side mounted energy attenuating vehicle seat. In one exemplary embodiment the seat comprises a rigid base with a first side, and a substantially vertically oriented mounting plate adjacent the first side of the base. The exemplary seat further comprises a vertical slide mechanism comprising a fixed portion attached to the mounting plate, and a sliding portion attached to the first side of the base, the mechanism configured to allow for a downward stroke of the base relative to the mounting plate. A roller is attached to the first side of the base substantially below the point of attachment to the sliding portion of the vertical slide mechanism, and configured to roll in a vertical direction while bearing against the mounting plate, and supporting the seat base in a horizontal orientation. An energy attenuating member is positioned so as to prevent the seat from stroking downward relative to the mounting plate during normal use.

Abstract: Methods and apparatus are provided for a crew seat for use in vehicles and aircraft potentially exposed to high acceleration or sudden impact conditions. The crew seat comprises a seat back with a rigid frame, a belt restraint system including a shoulder belt attached to an anchor point behind the seat back, and a shoulder belt support extending from the seat back. The shoulder belt support comprises an elongated portion disposed between a fixed end attached to the seat back and a free end with a guide slot. The shoulder belt support is moveable between a raised orientation and a lowered orientation by varying tension in the shoulder belt.