Abstract: An exhaust conduit and adapter apparatus for mounting to a pair of exhaust outlets mounted oppositely on the base of a portable oxygen concentrator includes an opposed facing pair of substantially u-shaped hollow conduits wherein each conduit has an inlet end and an outlet end. The inlet ends are separated by a distance equal to a separation distance between the pair of exhaust outlets. The outlet ends are mounted to each other in fluid communication with a junction having a single outlet. The inlet ends are adapted for mounting to the pair of exhaust outlets so that, when so mounted, hot exhaust from the oxygen concentrator flows through each conduit and out through the junction and the single outlet of the junction. An outflow conduit is mountable to the single outlet of the junction for outflow of the hot exhaust from the single outlet to a remote location, remote from a patient using the oxygen concentrator.

Abstract: An automated parking fee payment station using an ATM network is provided. The payment station includes ATM apparatus including the keypad, a card reader, a display, a communications interface and a micro-computer controller. The payment station further includes parking fee calculating and collection apparatus having a ticket reader and parking fee collection apparatus. The ticket reader and parking fee collection apparatus are operatively connected to and utilize the resources of the micro-computer controller, to allow payment of the parking fee by transaction of the ATM.