Abstract: An apparatus for a thrust reverser actuation system (“TRAS”), the apparatus comprising: an input shaft; a first component located concentrically around the input shaft; a second component located concentrically around the first component; a first ballscrew mechanism between the input shaft and the first component, and configured such that rotational movement of the input shaft causes a translational movement of the first component via the first ballscrew mechanism; and a second ballscrew mechanism between the first component and the second component, and configured such that rotational movement of the first component causes a translational movement of the second component via the second ballscrew mechanism.

Abstract: An apparatus for a thrust reverser actuation system (“TRAS”), the apparatus comprising: an input shaft; a first component located concentrically around the input shaft; a second component located concentrically around the first component; a first ballscrew mechanism between the input shaft and the first component, and configured such that rotational movement of the input shaft causes a translational movement of the first component via the first ballscrew mechanism; and a second ballscrew mechanism between the first component and the second component, and configured such that rotational movement of the first component causes a translational movement of the second component via the second ballscrew mechanism.

Abstract: An apparatus for a thrust reverser actuation system (“TRAS”), the apparatus comprising: an input shaft; a first component located concentrically around the input shaft; a second component located concentrically around the first component; a first ballscrew mechanism between the input shaft and the first component, and configured such that rotational movement of the input shaft causes a translational movement of the first component via the first ballscrew mechanism; and a second ballscrew mechanism between the first component and the second component, and configured such that rotational movement of the first component causes a translational movement of the second component via the second ballscrew mechanism.

Abstract: An apparatus for a thrust reverser actuation system (“TRAS”), the apparatus comprising: an input shaft; a first component located concentrically around the input shaft; a second component located concentrically around the first component; a first balls crew mechanism between the input shaft and the first component, and configured such that rotational movement of the input shaft causes a translational movement of the first component via the first ballscrew mechanism; and a second ballscrew mechanism between the first component and the second component, and configured such that rotational movement of the first component causes a translational movement of the second component via the second ballscrew mechanism.

Abstract: A splined coupling assembly includes: a transfer gear having a first end, a second end opposite the first end, and a plurality of splines at the first end. The splined coupling assembly also includes a transfer housing having a first side, a second side opposite the first side, and a tubular portion located at the second side. The tubular portion includes a plurality of splines. The plurality of splines of the transfer housing are configured to mesh with the plurality of splines of the transfer gear. The splined coupling assembly further includes a shear ring located in a shear ring groove in the tubular portion- and a retainer configured to retain the shear ring within the shear ring grove.

Abstract: Disclosed herein is a screw assembly comprising an internal re-circulating path for re-circulating lubricant fluid between a threaded screw shaft and seals provided at the ends of the screw assembly via internal chambers provided within the seals and passages formed within the nut. Also disclosed are seals for use within such assemblies.

Abstract: A lock system for a component of a thrust reverser actuation system (“TRAS”), comprising a lock member translatable between a locked position, in which the lock member prevents movement of the thrust reverser component to deploy the thrust reverser actuation system, and an unlocked position, in which the lock member allows movement of the thrust reverser component to deploy the thrust reverser actuation system. The actuator may further comprise a screw shaft and a nut translatable along the screw shaft and operatively connected to the lock member. Rotational movement of one of the screw shaft and the nut causes the nut to translate along the screw shaft and, in turn, the lock member to move between its locked position and its unlocked position.

Abstract: A splined coupling assembly is provided. The splined coupling assembly comprising: a transfer gear having a first end, a second end opposite the first end, and a plurality of splines at the first end; and a transfer housing having a first side, a second side opposite the first side, and a tubular portion located at the second side, the tubular portion comprising: a plurality of splines, wherein the plurality of splines of the transfer housing are configured to mesh with the plurality of splines of the transfer gear; a shear ring located in a shear ring groove in the tubular portion; and a retainer configured to retain the shear ring within the shear ring grove.

Abstract: A quick connect and disconnect arrangement for a cable comprises a housing for holding the cable. The housing comprises a first section and a second section. One of the first section and the second section comprises a protruding lug having an aperture therein and the other of the first section and the second section comprises a locking system. The locking system comprises a channel, an opening disposed along a portion of the channel and for receiving the lug, and a bolt configured to move within the channel. When, in use, the housing is closed around the cable, the lug is positioned in the opening, the channel is aligned with the aperture and the bolt is configured to move within the channel in order to engage with the aperture and thereby retain the lug in the opening.

Abstract: Disclosed herein is a screw assembly comprising an internal re-circulating path for re-circulating lubricant fluid between a threaded screw shaft and seals provided at the ends of the screw assembly via internal chambers provided within the seals and passages formed within the nut. Also disclosed are seals for use within such assemblies.

Abstract: An apparatus for a thrust reverser actuation system (“TRAS”), the apparatus comprising: an input shaft; a first component located concentrically around the input shaft; a second component located concentrically around the first component; a first balls crew mechanism between the input shaft and the first component, and configured such that rotational movement of the input shaft causes a translational movement of the first component via the first ballscrew mechanism; and a second ballscrew mechanism between the first component and the second component, and configured such that rotational movement of the first component causes a translational movement of the second component via the second ballscrew mechanism.

Abstract: A lock system for a component of a thrust reverser actuation system (“TRAS”), comprising a lock member translatable between a locked position, in which the lock member prevents movement of the thrust reverser component to deploy the thrust reverser actuation system, and an unlocked position, in which the lock member allows movement of the thrust reverser component to deploy the thrust reverser actuation system. The actuator may further comprise a screw shaft and a nut translatable along the screw shaft and operatively connected to the lock member. Rotational movement of one of the screw shaft and the nut causes the nut to translate along the screw shaft and, in turn, the lock member to move between its locked position and its unlocked position.

Abstract: A quick connect and disconnect arrangement for a cable comprises a housing for holding the cable. The housing comprises a first section and a second section. One of the first section and the second section comprises a protruding lug having an aperture therein and the other of the first section and the second section comprises a locking system. The locking system comprises a channel, an opening disposed along a portion of the channel and for receiving the lug, and a bolt configured to move within the channel. When, in use, the housing is closed around the cable, the lug is positioned in the opening, the channel is aligned with the aperture and the bolt is configured to move within the channel in order to engage with the aperture and thereby retain the lug in the opening.