Miniature rotary multipolar selector switch with rotor resilient conductive brush and ball contact structure

Claim 1

A ROTARY SELECTOR SWITCH COMPRISING IN COMBINATION, AN OPEN-ENDED CYLINDRICAL CASING PROVIDING A FIXED OUTER HOUSING FOR SAID SWITCH, A CYLINDRICAL ROTOR ELEMENT SEATED AND ROTATABLE IN SAID CASING IN COAXIAL RELATION THERETO, TWO LONGITUDINALLY-SPACED CONDUCTIVE BALL CONTACTS WITH AND ELONGATED CONDUCTIVE RESILIENT SPRING BRUSH ELEMENT CARRIED BY SAID ROTOR ELEMENT AND CONDUCTIVELY BRIDGING BETWEEN SAID CONTACTS, A CYLINDRICAL STATOR ELEMENT CONNECTED WITH THE CASING AND EXTENDING COAXIALLY WITHIN SAID ROTOR ELEMENT, MEANS PROVIDING FIXED EQUALLY ANGULARLYSPACED STATOR CONTACT AREAS IN TWO LONGITUDINALLY-SPACED PERIPHERAL PATHS CONTACTED AND BRIDGED CONDUCTIVELY BY SAID BALL CONTACT AND BRUSH ELEMENTS FOR SELECTIVE SWITCHING BY ROTATION OF SAID ROTOR WITH RESPECT TO THE STATOR AND CASING, THE CONTACT AREAS IN ONE PATH DEPRESSED RADIALLY TO PROVIDE DETENT MEANS FOR THE BALL CONTACTS AND DEFINE THE SELECTOR SWITCHING STOP POSITIONS FOR THE ROTOR, AND TERMINAL ELEMENTS CONNECTED EACH WITH ONE OF SAID STATOR CONTACT AREAS FOR EXTERNAL CIRCUIT CONNECTIOIN WITH THE SWITCH.