Abstract: A coin- or token-operated game duration controller for a game utilizing a net stretched across a court between a pair of posts. The controller is attached to one of the posts and comprises an electrically driven winch winding and unwinding the net cord cable for raising the net at the beginning of a game period and for lowering the net at the end of a game period. The electric motor is controlled by a coin or token operated switch and timer. The invention requires no modification or alteration of conventional existing net support posts.

Abstract: The portable refillable inflator for air mattresses, inflatable balls, pneumatic tires and the like, in the form of a tubular vessel provided at each end with an inverted domed wall. One wall is provided with a conventional tire inflation valve for filling the vessel with compressed air, and the other domed wall is provided, with an outlet valved nozzle having a flexible tubular body through which extends a stem attached to a disk disposed within the vessel and normally fitting against an annular seat. Upon deflection of the flexible nozzle body, lateral displacement of the stem causes the valve disk to uncover a portion of the seat thus permitting air to escape from the vessel through the outlet nozzle.