Dual coaxial cavity resonators with variable coupling therebetween

Claim 1

IN A COAXIAL CAVITY RESONATOR SUITABLE FOR USE IN ENVIRONMENTS WHEREIN SAID RESONATOR IS SUBJECT TO SUBSTANTIAL MECHANICAL VIBRATION AND TEMPERATURE CHANGES, SAID RESONATOR BEING OF THE TYPE HAVING A BODY OF ELECTRICALLY CONDUCTIVE MATERIAL WITH A PAIR OF CYLINDRICAL CAVITIES THEREIN, THERE BEING A PAIR OF HELICAL COILS, ONE OF SAID COILS BEING DISPOSED AXIALLY IN EACH OF SAID CAVITIES AND MEANS FOR CONNECTING ONE OF SAID COILS TO AN INPUT AND THE OTHER OF SAID COILS TO AN OUTPUT MEANS, THE COMBINATION WITH SAID CAVITY RESONATOR OF A COUPLING MEANS BETWEEN SAID COILS COMPRISING: A CHAMBER IN SAID BODY, SAID CHAMBER BEING POSITIONED ADJACENT EACH OF SAID CAVITIES; A PAIR OF ELONGATED ELECTRICAL CONDUCTORS EACH HAVING A FREE END AND EACH HAVING ANOTHER END CONNECTED RESPECTIVELY TO A PREDETERMINED POINT ON EACH OF SAID COILS; PASSAGEWAYS IN SAID BODY COMMUNICATING BETWEEN EACH OF SAID CAVITIES AND SAID CHAMBER AND HAVING ELECTRICAL INSULATION MEANS DISPOSED THEREIN, SAID CONDUCTORS EXTENDING THROUGH SAID INSULATION MEANS AND INTO SAID CHAMBER, SAID FREE ENDS OF SAID CONDUCTORS BEING DISPOSED IN SPACED RELATIONSHIP; AND AN ELEMENT ADJUSTABLY CARRIED BY AND ELECTRICALLY CONNECTED TO SAID BODY AND EXTENDING INTO SAID CHAMBER, AN END OF SAID ELEMENT BEING POSITIONED ADJACENT SAID SPACED ENDS OF SAID CONDUCTORS WHEREBY MOVEMENT THEREOF RELATIVE TO SAID ENDS OF SAID CONDUCTORS WILL ALTER CAPACITIVE COUPLING BETWEEN THE COILS.