Abstract: A trailer having an adjustable kingpin assembly configured to adjust a ground clearance of the trailer. The adjustable kingpin assembly is configured to be detachably connected to a fifth wheel on a truck or tractor. The trailer includes a pivot frame having a kingpin pivotally coupled to a trailer. The pivot frame is configured to pivot between a first angular position and a second angular position to adjust a ground clearance of the trailer. The adjustable kingpin assembly also includes a rocker plate assembly pivotally coupled to the pivot frame and at least one bladder engaging the rocker plate assembly to rotate the pivot frame between the first angular position and the second angular position. The rocker plate assembly is configured to pivot to compensate for the pivoting of the pivot frame between the first and second angular positions.

Abstract: A trailer having an adjustable kingpin assembly configured to adjust a ground clearance of the trailer. The adjustable kingpin assembly is configured to be detachably connected to a fifth wheel on a truck or tractor. The trailer includes a pivot frame having a kingpin pivotally coupled to a trailer. The pivot frame is configured to pivot between a first angular position and a second angular position to adjust a ground clearance of the trailer. The adjustable kingpin assembly also includes a rocker plate assembly pivotally coupled to the pivot frame and at least one bladder engaging the rocker plate assembly to rotate the pivot frame between the first angular position and the second angular position. The rocker plate assembly is configured to pivot to compensate for the pivoting of the pivot frame between the first and second angular positions.

Abstract: A system and method for notifying a notification recipient of an event status change and allowing the notification recipient to request action is disclosed. An event occurs. A message relating to the event applicable to an end-user is created. A communication link between an outbound module and a device associated with the end-user is established. The message is delivered to the end-user device. The communication link is transferred from the outbound module to an inbound module. A response is received from the end-user device at the inbound module.