Abstract: An automatic alarm is disclosed for detecting obstacles behind a vehicle as the vehicle travels backwards. The alarm includes a casing mounted at the rear of the vehicle and having a rearwardly facing opening. A revolving disc is mounted within the casing which is driven by a motor in the casing. A printed circuit plate is fixed within the casing under the revolving disc. A supersonic transmitting member is installed on the revolving disc. A supersonic receiving member is installed on the revolving disc. The transmitting and receiving members are simultaneously alignable with the opening and are electrically connected to a printed circuit on the printed circuit plate at least when the transmitting and receiving members are aligned with the opening, so that the transmitting member emits a signal which is deflected off adjacent obstacles and is detected by the receiving member.

Abstract: Remote radio controlled inflatable toy includes a huge inflatable figure of man, animal or object, a movable base connected to the bottom of the figure and operable by remote control of a radio signal, and a separately provided radio signal emitter/controller. Wheels radio signal receiver and drive mechanism are provided under the movable base to drive and/or change direction of movement through the remote control of the radio signal emitter/controller. A connector is provided on top of the base to retain the inflated figure and keep the figure from falling from the base. The static figure is removably mounted on the base through inflation to cause its bottom or foot to be urged against the connector or retracted therefrom. The radio controlled base adds a dynamic interest to the static figure mounted thereupon. When the figure is separated from the base, both can be played with as individual items. A plurality of figures can be provided interchangeably on a single base.