Abstract: A dock bumper for minimizing damage to a back of a vehicle upon contacting a low-lying object may include a generally-rigid shock-absorbing member to be secured adjacent to a back portion of the vehicle. The shock-absorbing member may include a distal surface extended away from the back portion of the vehicle to contact a surface of a loading dock as the vehicle is operated in reverse, and a proximate surface positioned to contact a structural member at the back portion of the vehicle. A modular step may be coupled to the shock-absorbing member to dissipate at least a suitable portion of a force exerted on the step to minimize damage to the structural member contacting the proximate surface of the shock-absorbing member.

Abstract: A wireless control system can be used to selectively adjust the position of a liftgate platform with respect to a vehicle cargo hold. The wireless control system includes a transmitter for use in transmitting a wireless control signal, a receiver that receives the wireless control signal transmitted by the transmitter and communicates a corresponding control signal to an actuation device to adjust the platform and, a transmitter detection system that prevents the actuation device from operating unless the transmitter is positioned in a predetermined location.

Abstract: A new and improved shopping cart release system is disclosed for use in collecting, transporting, removing and loading various types of carts and carriers. A release system is adapted for use with carts of the type configured for materials handling and a vehicle such as a semi-truck trailer used to transport such carts. The release system includes and a ramp that physically engages with a cart so as to retain the cart within the semi-trailer. An automated remote system may also be used, enabling an operator to release a cart without having to manipulate the release system directly. The release system is located within the floor of the semi-trailer. The release system can also be used in other arrangement, for example, within a liftgate mechanism that has the release system incorporated within the loading ramp of the liftgate. The release system utilized in the liftgate operates in the same manner as that of the release system incorporated within the floor of the bed of a semi-trailer truck.