Abstract: A transportation system in which cars having cargo containers are driven along tracks. Access to a car's cargo container is provided via a door on the car which is moved by a door drive system carried on the car. In the exemplary case of a remote bank teller transportation system, a car moves between two terminals in which the car and the car door are orientated vertically "right side up" in one terminal and "upside down" in the other terminal. The door drive system serves to move the door downwardly for both orientations of the car.

Abstract: A pneumatically-propelled carrier system including a pneumatic system tube of generally circular cross section interconnecting a first terminal constructed to permit the carrier to be removed, that is, a "free carrier" terminal, and a second terminal constructed to prevent removal of the carrier, while providing access to it through a terminal access opening, this latter terminal being a "captive carrier" terminal. Since the system tube interconnecting the captive and free terminals has a generally circular cross section, the carrier, regardless of its cross section, is free to assume any rotational orientation about its longitudinal axis.

Abstract: A dispatch and receive terminal that, in preferred form, includes an air tight pusher housing and a pusher flap swingably mounted to move between a retract position and an extend position in response to air pressure in that housing. In the dispatch or pressure mode, the pusher flap swings into an air tight terminal housing to push the carrier axially along the guide tray and partially back into the system tube. After the carrier has been initially dispatched back into the system tube, and as the pusher flap swings further into the terminal housing to an open position, the pusher flap structure opens a pressure port between the terminal and the pusher housings, thereby pressurizing the terminal housing and the system tube behind the carrier for pushing the carrier completely out of the housing and at least partially through the tube.