Abstract: A signal activating device for activating a nurse call system as commonly used in hospitals and nursing homes to summon the attending personnel for assistance, wherein an elongate bar having circuitry electrically interconnected to the call system is supported on the railing structure of a bed or chair so as to extend transversely thereacross in a readily accessible location over a midportion of the body of a person in the bed or chair. A hollow tube is fitted over the bar in engaging, supported relation on a number of electric switches mounted at spaced intervals along the bar's length such that pressure applied by the person to any location along the upper portion of the tube serves to operate at least one electric switch on the bar, thereby activating the nurse call system.

Abstract: A cleaning assembly to be used underwater primarily for the cleaning by removing of debris from bottom and wall surfaces of swimming pools, spas, and like water containing structures. A movable carriage supports a pump assembly which includes an impeller driven by a water sealed motor which in turn is powered by a water sealed battery or like electrical power source self-contained on the carriage. The impeller communicates directly with an input and output portion of a water channeling conduit so as to force water and debris carried thereby through the conduit, beyond the pump and eventually to a filter structure located on the exterior of the carriage. The filter structure is porous and therefore allows return of water directly to the pool while retaining debris which is removed from the bottom or wall surfaces of the pool.