Magnetron having evacuated discharge subassembly united with unevacuated magnetic andresonant cavity structure

Claim 1

RADIO FREQUENCY APPARATUS COMPRISING A MAGNET SUBASSEMBLY INCLUDING A PAIR OF OPPOSED SPACED POLE PIECES, A UNITARY CIRCUIT SUBASSEMBLY INCLUDING A RADIO FREQUENCY CAVITY CIRCUIT HAVING AN ELECTRIC DISCHARGE DEVICE INCLUDING ELECTRODE CONTACT SURFACES ON OPPOSED ENDS THEREOF MOUNTED IN SAID CIRCUIT SUBASSEMBLY AND WITH SAID CONTACT SURFACES EXPOSED, A D.C. CONTACT STRUCTURE SECURELY AFFIXED TO EACH OF THE OPPOSED SIDES OF SAID RADIO FREQUENCY CIRCUIT AND INCLUDING MEANS MAKING ELECTRICAL CONTACT WITH SAID CONTACT SURFACES OF SAID DEVICE, SAID CIRCUIT SUBASSEMBLY BEING POSITIONED BETWEEN SAID POLE PIECES WITH SAID DEVICE IN A PREDETERMINED ADJUSTED POSITION RELATIVE TO THE MAGNETIC FIELD BETWEEN SAID POLE PIECES AND WITH SAID D.C. CONTACT STRUCTURES INTERPOSED BETWEEN SAID POLE PIECES AND THE ENDS OF SAID DEVICE AND SPACED FROM SAID POLE PIECES, AND A THERMALY CONDUCTIVE METALTO-METAL BOND MATERIAL INTERPOSED BETWEEN AND CONFORMING TO EACH SAID D.C. CONTACT STRUCTURE AND ITS ADJACENT POLE PIECE FOR RIGIDLY SUPPORTING AND MAINTAINTING SAID PREDETERMINED ADJUSTED POSITION OF SAID DEVICE RELATIVE TO SAID MAGNETIC FIELD.