Rotary toothbrush for oral hygiene

Claim 1

IN AN ELECTRIC TOOTHBRUSH OF THE TYPE COMPRISING AN ELONGATED HOLLOW HANDLE, A SHANK MEMBER CONNECTED TO ONE END OF SAID HANDLE, A BRUSH MEMBER ROTATABLY MOUNTED IN THE OUTER END OF THE SHANK MEMBER, AN ELECTRIC MOTOR MOUNTED IN SAID HANDLE, SAID BRUSH MEMBER BEING PROVIDED WITH A SHAFT ROTATABLY MOUNTED IN SAID SHANK MEMBER LONGITUDINALLY THEREOF, MEANS DRIVINGLY COUPLING SAID SHAFT TO SAID MOTOR, AND A BATTERY IN SAID HANDLE, THE IMPROVEMENT COMPRISING A PAIR OF CROSSED ELONGATED CON DUCTORS MOUNTED IN THE WALL OF SAID HANDLE AND INSULATED FROM EACH OTHER, MEANS CONNECTING SAID CONDUCTORS TO THE RESPECTIVE TERMINALS OF THE MOTOR, PAIR OF SPACED PARALLEL RESILIENT ELONGATED CONDUCTOR BARS MOUNTED IN SAID WALL OVERLYING AND NORMALLY DISENGAGED FROM THE RESPECTIVE OPPOSITE PAIRS OF END PORTIONS OF THE CROSSED CONDUCTORS, MEANS CONNECTING THE RESILIENT CONDUCTOR BARS TO THE OPPOSITE TERMINALS OF THE BATTERY, AND A PAIR OF ELONGATED PARALLEL ACTUATOR BARS OF INSULATING MATERIAL MOVABLY MOUNTED IN SAID WALL AND OVERLYING THE OPPOSITE END PORTIONS OF THE RESILIENT BARS TRANSVERSE THERETO, WHEREBY TO REVERSIBLY CONNECT THE MOTOR TO THE BATTERY RESPONSIVE TO SELECTIVE DEPRESSION OF THE ACTUATOR BARS.