Coaxial switch having means to reflectionlessly terminate disconnected branches

Claim 1

A COAXIAL SWITCH COMPRISING A HOUSING WITH AN INTERIOR ROTOR CHAMBER AND A SERIES OF COAXIAL LINE TERMINALS OPENING INTO SAID CHAMBER, AND A ROTOR IN SAID ROTOR CHAMBER AND HAVING A COAXIAL LINE SECTION FOR INTERCONNECTING SELECTIVE ONES OF SAID TERMINALS, SAID ROTOR HAVING AN ELECTRICAL IMPEDANCE ELEMENT CARRIED AT THE PERIPHERY THEREOF FOR REGISTRATION WITH AT LEAST ONE OF SAID COAXIAL LINE TERMINALS TO PROVIDE A TERMINATION FOR SAID ONE TERMINAL IN ONE POSITION OF SAID ROTOR, SAID IMPEDANCE ELEMENT COMPRISING AN ANNULUS OF ELECTRICALLY RESISTIVE MATERIAL HAVING A CENTRAL APERTURE, AND AN INNER CONDUCTOR CONTACT BUTTON HAVING A SHAFT PORTION EXTENDING THROUGH SAID APERTURE, MEANS ELECTRICALLY CONNECTING SAID CONTACT BUTTON WITH THE INNER PERIMETER OF SAID ANNULUS OF ELECTRICALLY RESISTIVE MATERIAL, AND MEANS FOR RESILIENTLY PRESSING SAID BUTTON INTO CONTACT WITH THE INNER CONDUCTOR OF THE TERMINAL WITH WHICH IT IS REGISTERED.