Magnetron device having a cooling arrangement and capacitively coupled output circuit

Claim 2

IN COMBINATION, A MAGNETRON DEVICE INCLUDING A HERMETICALLY SEALED ENVELOPE, A PAIR OF ELECTROMAGNETIC COILS DISPOSED EXTERIORLY OF SAID ENVELOPE AND RESPECTIVELY OPERATIVELY ASSOCIATED WITH THE OPPOSITE ENDS OF SAID ENVELOPE, THEREBY TO PRODUCE A COAXIAL MAGNETIC FIELD THROUGH SAID ENVELOPE, A FIRST METAL BOX-LIKE CONSTRUCTION FITTED ABOUT SAID ENVELOPE IN SPACED RELATION THEREWITH, SAID FIRST BOX-LIKE CONSTRUCTION BEING FORMED OF MAGNETIC PERMEABLE MATERIAL AND PROVIDING A MAGNETIC RETURN PATH BETWEEN SAID COILS ON OPPOSITE SIDES OF SAID ENVELOPE, AND A SECOND METAL BOX-LIKE CONSTRUCTION SURROUNDING SAID FIRST BOX-LIKE CONSTRUCTION IN SPACED RELATION THEREWITH, SAID FIRST BOX-LIKE CONSTRUCTION BEING ELECTRICALLY CONNECTED TO SAID ENVELOPE, SAID SECOND BOX-LIKE CONSTRUCTION BEING A PART OF SAID MAGNETRON DEVICE BUT ELECTRICALLY INSULATED FROM BOTH SAID ENVELOPE AND SAID FIRST BOX-LIKE CONSTRUCTION AND ELECTRICALLY CONNECTED TO GROUND POTENTIAL, WHEREBY SAID SECOND BOX-LIKE CONSTRUCTION PROVIDES A SHIELD FOR SAID ENVELOPE AND SAID FIRST BOX-LIKE CONSTRUCTION.

Claim 3

A CROSSED-FIELD ELECTRIC DISCHARGE DEVICE COMPRISING AN ANODE STRUCTURE DEFINING BOTH AN AXIALLY EXTENDING SPACE THEREIN AND A PLURALITY OF RESONATOR CAVITIES OPENING INTO SAID SPACE, WHEREBY SAID DEVICE IS ARRANGED TO OSCILLATE AT A GIVEN ULTRA-HIGH FREQUENCY, MEANS FOR PRODUCING A COAXIAL MAGNETIC FIELD THROUGH SAID ANODE STRUCTURE, A GENERALLY CYLINDRICAL CATHODE ARRANGED IN SAID SPACE AND DISPOSED RADIALLY INWARDLY FROM SAID ANODE STRUCTURE, AN ELECTRIC HEATER ARRANGED WITHIN SAID CATHODE, A PAIR OF TERMINALS ARRANGED IN ADJACENT SPACED-APART RELATION AND ELECTRICALLY INSULATED FROM EACH OTHER, THE INNER END OF ONE OF SAID TERMINALS BEING ELECTRICALLY CONNECTED BOTH TO SAID CATHODE AND TO ONE EXTREMITY OF SAID HEATER, THE INNER END OF THE OTHER OF SAID TERMINALS BEING ELECTRICALLY CONNECTED TO THE OTHER EXTREMITY OF SAID HEATER, AND AN ASSEMBLY OF THREE PLATES ARRANGED IN ADJACENT SPACED-APART STACKED RELATION AND ELECTRICALLY INSULATED MUTUALLY FROM EACH OTHER, SAID PLATES ALSO BEING ARRANGED IN SURROUNDING RELATION WITH RESPECT TO SAID TERMINALS, A FIRST OF SAID PLATES BEING ELECTRICALLY CONNECTED TO SAID ONE TERMINAL AND ELECTRICALLY INSULATED BOTH FROM SAID OTHER TERMINAL AND FROM GROUND POTENTIAL, A SECOND OF SAID PLATES BEING ELECTRICALLY CONNECTED TO SAID OTHER TERMINAL AND ELECTRICALLY INSULATED BOTH FROM SAID ONE TERMINAL AND FROM GROUND POTENTIAL, A THIRD OF SAID PLATES BEING ELECTRICALLY CONNECTED TO GROUND POTENTIAL AND ELECTRICALLY INSULATED FROM EACH OF SAID TERMINALS, EACH OF SAID FIRST AND SECOND PLATES BEING SUBSTANTIALLY DISC-SHAPED AND HAVING A DIAMETER THAT IS SUBSTANTIALLY EQUAL TO 1/8 OF THE WAVE LENGTH OF SAID GIVEN ULTRA-HIGH FREQUENCY, WHEREBY SAID ASSEMBLY CONSTITUTES A CAPACITIVE SHUNT FROM SAID TERMIGIVEN ULTRA-HIGH FREQUENCY.

Claim 4

A CROSSED-FIELD ELECTRIC DISCHARGE DEVICE COMPRISING AN ANODE STRUCTURE DEFINING BOTH AN AXIALLY EXTENDING SPACE THEREIN AND A PLURALITY OF RESONATOR CAVITIES OPENING INTO SAID SPACE, WHEREBY SAID DEVICE IS ARRANGED TO OSCILLATE AT A GIVEN ULTRA-HIGH FREQUENCY, MEANS FOR PRODUCING A COAXIAL MAGNETIC FIELD THROUGH SAID ANODE STRUCTURE, A GENERALLY CYLINDRICAL CATHODE ARRANGED IN SAID SPACE AND DISPOSED RADIALLY INWARDLY FROM SAID ANODE STRUCTURE, AN ELECTRIC HEATER ARRANGED WITHIN SAID CATHODE, A PAIR OF TERMINALS ARRANGED IN ADJACENT SPACED-APART RELATION AND ELECTRICALLY INSULATED FROM EACH OTHER, THE INNER END OF ONE OF SAID TERMINALS BEING ELECTRICALLY CONNECTED BOTH TO SAID CATHODE AND TO ONE EXTREMITY OF SAID HEATER, THE INNER END OF THE OTHER OF SAID TERMINALS BEING ELECTRICALLY CONNECTED TO THE OTHER EXTREMITY OF SAID HEATER, AND AN ASSEMBLY OF THREE PLATES ARRANGED IN ADJACENT SPACED-APART STACKED RELATION AND ELECTRICALLY INSULATED MUTUALLY FROM EACH OTHER, SAID PLATES ALSO BEING ARRANGED IN SURROUNDING RELATION WITH RESPECT TO SAID TERMINALS, A FIRST OF SAID PLATES BEING ELECTRICALLY CONNECTED TO SAID ONE TERMINAL AND ELECTRICALLY INSULATED BOTH FROM SAID OTHER TERMINAL AND FROM GROUND POTENTIAL, A SECOND OF SAID PLATES BEING ELECTRICALLY CONNECTED TO SAID OTHER TERMINAL AND ELECTRICALLY INSULATED BOTH FROM SAID ONE TERMINAL AND FROM GROUND POTENTIAL, A THIRD OF SAID PLATES BEING ELECTRICALLY CONNECTED TO GROUND POTENTIAL AND ELECTRICALLY INSULATED FROM EACH OF SAID TERMINALS, EACH OF SAID FIRST AND SECOND PLATES BEING SUBSTANTIALLY DISC-SHAPED AND HAVING A DIAMETER THAT IS SUBSTANTIALLY EQUAL TO 1/8 OF THE WAVE LENGTH OF SAID GIVEN ULTRA-HIGH FREQUENCY, WHEREBY SAID ASSEMBLY CONSTITUTES A CAPACITIVE SHUNT FROM SAID TERMIGIVEN ULTRA-HIGH FREQUENCY.