Automatic coaxial switch

Claim 1

AN AUTOMTIC COAXIAL TRANSMIT-RECEIVE SWITCH COMPRISING IN COMBINATION A RECTANGULAR METAL BLOCK PROVIDED WITH FIRST AND SECOND SPACED LONGITUDINAL BORES EXTENDING FROM THE FRONT SURFACE OF SAID BLOCK TO APPROXIMATELY THE REAR SURFACE OF SAID BLOCK, A TRANSVERSE BORE FORMED IN SAID BLOCK ADJACENT THE CLOSED ENDS OF AND INTERSECTING SAID FIRST AND SECOND LONGITUDINAL BORES AND EXTENDING FROM ONE SIDE OF SAID BLOCK TO THE OPPOSITE SIDE OF SAID BLOCK; A FIRST COAXIAL CONNECTOR AFFIXED IN SAID TRANSVERSE BORE FOR COUPLING A RADIO RECEIVER TO SAID SWITCH, SAID FIRST COAXIAL CONNECTOR FORMED WITH A HOUSING COMPRISING A BASE MEMBER EXTENDING FROM SAID ONE SIDE TO SAID FIRST LONGITUDINAL BORE, A SPRING LOADED PLUNGER SLIDABLY MOUNTED IN SAID FIRST COAXIAL CONNECTOR AND PROVIDED WITH A FLANGE MEMBER FOR CONTACTING THE INSIDE SURFACE OF SAID HOUSING WHEREBY THE INPUT OF SAID RADIO RECEIVER IS SHORTED TO GROUND WHEN SAID SWITCH IS IN THE TRANSMIT POSITION, SAID PLUNGER HAVING ONE END CONNECTED TO THE CENTER CONTACT MEANS OF SAID FIRST COAXIAL CONNECTOR BY FLEXIBLE CONDUCTOR MEANS AND EXTENDING THROUGH A PERFORATION IN THE BASE OF SAID HOUSING INTO SAID FIRST LONGITUDINAL BORE; A SECOND COAXIAL CONNECTOR FOR COUPLING A RADIO TRANSMITTER TO SAID SWITCH AFFIXED IN SAID TRANSVERSE BORE WITH ITS BASE MEMBER EXTENDING FROM SAID OPPOSITE SIDE TO SAID SECOND LONGITUDINAL BORE, A PLUNGER SLIDABLY MOUNTED IN SAID SECOND COAXIAL CONNECTOR HAVING ONE END CONNECTED TO THE CENTER CONTACT MEANS OF SAID SECOND COAXIAL CONNECTOR, SAID PLUNGER PASSING THROUGH SAID SECOND LONGITUDINAL BORE AND TERMINATING IN THE TRANSVERSE BORE BETWEEN SAID FIRST AND SECOND LONGITUDINAL BORES, A CIRCUMFERENTIAL GROOVE FORMED IN THAT PORTION OF SAID PLUNGER IN THE SAID SECOND LONGITUDINAL BORE; A THIRD COAXIAL CONNECTOR AFFIXED IN THE OPEN END OF SAID SECOND LONGITUDINAL BORE, SAID SPRING REED HAVING SAID SECOND LONGITUDINAL BORE, SAID SPRING REED HAVING ONE END AFFIXED IN SAID THIRD COAXIAL CONNECTOR AND IN CONTACT WITH THE CENTER CONTACT MEANS THEREOF, THE OPPOSITE END OF SAID SPRING REED BEING SPLIT AND IN ENGAGEMENT WITH SAID CIRCUMFERENTIAL GROOVE, SAID SPRING REED BEING STRESSED TO NORMALLY URGE SAID PLUNGER INTO THE PORTION OF SAID TRANSVERSE BORE BETWEEN THE FIRST AND SECOND LONGITUDINAL BORES; A CUP MEMBER FORMED WITH A CENTRALLY PERFORATED BOTTOM WALL EXTENDING INTO SAID FIRST LONGITUDINAL BORE AND OPPOSITE THE HOUSING OF SAID FIRST COAXIAL CONNECTOR, SAID CUP MEMBER HAVING AN INSULATED CLOSURE WITH A CENTRAL BORE, A SECOND SPRING LOADED PLUNGER SLIDABLY MOUNTED IN THE CENTRAL BORE OF SAID CLOSURE HAVING ONE END EXTENDING INTO SAID TRANSVERSE BORE IN ALIGNMENT WITH SAID PLUNGER AND ITS OPPOSITE END EXTENDING INTO SAID FIRST LONGITUDINAL BORE IN ALIGNMENT WITH SAID FIRST SPRING LOADED PLUNGER, A FLANGE FORMED ON THE PORTION OF SAID SECOND SPRING LOADED PLUNGER WITHIN SAID CUP MEMBER BEING NORMALLY URGED AGAINST THE INSIDE SURFACE IN SAID BOTTOM PROVIDING A CLOSURE FOR THE PERFORATION IN SAID BOTTOM WALL; A FOURTH COAXIAL CONNECTOR AFFIXED IN THE OPEN END OF SAID FIRST LONGITUDINAL BORE FOR CONNECTING AN ANTENNA THERETO, A SECOND SPRING REED POSITIONED IN SAID FIRST LONGITUDINAL BORE HAVING ONE END AFFIXED IN SAID FOURTH COAXIAL CONNECTOR AND IN CONTACT WITH THE CENTER CONTACT MEANS THEREOF AND ITS OPPOSITE END PROVIDED WITH CONTACT MEANS IN ALIGNMENT WITH SAID FIRST AND SECOND SPRING LOADED PLUNGERS, SAID SECOND SPRING REED STRESSED SO THAT ITS CONTACT MEANS NORMALLY ENGAGES SAID FIRST SPRING LOADED PLUNGER, A PLUNGER-SOLENOID AFFIXED TO SAID ONE SIDE OF SAID HOUSING, A BORE IN SAID HOUSING EXTENDING FROM SAID ONE SIDE TO SAID FIRST LONGITUDINAL BORE THROUGH WHICH THE PLUNGER OF SAID PLUNGER-SOLENOID PASSES FOR COOPERATING WITH SAID SECOND SPRING REED, AND MEANS IN SAID SWITCH PROVIDING A RESISTANCE LOAD FOR SAID RADIO TRANSMITTER UNTIL AFTER THE ANTENNA HAS BEEN SWITCHED TO SAID RADIO TRANSMITTER.