Abstract: A door communication device for use with a door. The door communication device includes a rotatable message wheel for selectively displaying a selected one of a plurality of messages and a rotatable shaft that provides an optical viewing pathway through the door. The shaft is formed from an intumescent material that expands to block the bore of the shaft when sufficiently heated, such as by a fire, to inhibit the passage of heated air and smoke through the door.

Abstract: A door communication device for use with a door. The door communication device includes a rotatable message wheel for selectively displaying a selected one of a plurality of messages and a rotatable shaft that provides an optical viewing pathway through the door. The shaft is formed from an intumescent material that expands to block the bore of the shaft when sufficiently heated, such as by a fire, to inhibit the passage of heated air and smoke through the door.

Abstract: A system employing wheeled vehicles, such as strollers. A plurality of the wheeled vehicles is provided, each having a docking element. A vehicle station has a docking port for each of at least some of the wheeled vehicles. Each docking port has a charging device and is shaped to engage a docking element of an engaged wheeled vehicle. At least two display screens are provided on the wheeled vehicle, one for an occupant and one for an operator. One or more screen drivers is provided for the display screens.

Abstract: A system for vending wheeled vehicles, such as strollers for children. The system includes a vehicle station having a series of docking ports with an operator's console connected thereto. Each docking port has a lock and release mechanism for engaging a striker pin of a wheeled vehicle engaged in the docking port. Upon appropriate signals from the operator's console, a vehicle discharge element in the docking port moves the wheeled vehicle when the lock and release mechanism is activated to disengage the striker pin, moving the wheeled vehicle from the locked position and making the availability of the wheeled vehicle obvious.

Abstract: A system employing wheeled vehicles, such as strollers. A plurality of the wheeled vehicles is provided, each having a docking element. A vehicle station has a docking port for each of at least some of the wheeled vehicles. Each docking port has a charging device and is shaped to engage a docking element of an engaged wheeled vehicle. At least two display screens are provided on the wheeled vehicle, one for an occupant and one for an operator. One or more screen drivers is provided for the display screens.

Abstract: A convertible stroller and shopping vehicle having a stroller portion and a shopping vehicle portion. The stroller portion includes a seat which is movable from a deployed position to a stowed position. In the deployed position, the invention is used as a stroller. The shopping vehicle portion includes a collapsible receptacle that can be oriented in one of two orientations. In an open orientation, the receptacle creates a shopping cart while in a collapsed orientation the invention can be used to transport bulk materials.

Abstract: A convertible stroller and shopping vehicle having a stroller portion and a shopping vehicle portion. The stroller portion includes a seat which is movable from a deployed position to a stowed position. In the deployed position, the invention is used as a stroller. The shopping vehicle portion includes a collapsible receptacle that can be oriented in one of two orientations. In an open orientation, the receptacle creates a shopping cart while in a collapsed orientation the invention can be used to transport bulk materials.

Abstract: A vehicle for transporting a removable product carrier having a pair of handles, such as a bag. The vehicle has a wheeled frame and a pivotal forward frame member which can be collapsed against the frame or positioned at a predetermined pivotal orientation in relation to the frame. A pair of suspension brackets, one each on the forward frame member and the frame, engage the handles of the product carrier to suspend it in the vehicle.

Abstract: A convertible stroller and shopping cart having a stroller portion and a shopping cart portion. The stroller portion includes a seat secured to a metal frame, and the shopping cart portion comprises a collapsible receptacle. The receptacle can be oriented in two orientations, a stowed orientation adjacent the seat and a deployed orientation over the seat. When the receptacle is deployed, it conforms to the seat, creating a shopping cart from the stroller.