Underwater communicator

Claim 1

IN AN UNDERWATER COMMUNICATOR, THE COMBINATION OF: A HOUSING; A TRANSDUCER POSITIONED WITHIN SAID HOUSING AND HAVING A MOVABLE MEMBRANE COMMUNICATING WITH THE AMBIENT WATER MEDIUM SOLELY ON THE FRONT SIDE THEREOF; A POWER SUPPLY POSITIONED WITHIN SAID HOUSING FOR ACTUATING SAID TRANSDUCER; AN AMPLIFIER UNIT WITHIN SAID HOUSING CONNECTED BETWEEN SAID POWER SUPPLY AND SAID TRANSDUCER; AN EXTERNALLY POSITIONED MICROPHONE; MEANS CONNECTABLE TO SAID EXTERNALLY POSITIONED MICROPHONE AS AN INPUT TO SAID AMPLIFIER UNIT; PRESSURE REGULATING MEANS MOUNTED IN SAID HOUSING FOR CONTROLLING THE DIFFERENCE IN PRESSURES EXERTED ON THE FRONT AND REAR SIDES OF SAID MOVABLE MEMBRANE INCLUDING A PRESSURE CHAMBER WITH AT LEAST ONE OPERTURE COMMUNICATING WITH THE AMBIENT WATER MEDIUM, A FLEXIBLE DIAPHRAGM MOUNTED BETWEEN SAID APERTURE AND THE INTERIOR OF SAID HOUSING AND MOVABLE BETWEEN EXTENDED AND COMPRESSED POSITIONS IN RESPONSE TO THE PRESSURE DIFFERENTIAL BETWEEN THE INTERIOR OF SAID HOUSING AND THE AMBIENT WATER MEDIUM FOR CONTROLLING THE DIFFERENCE IN PRESSURES EXERTED ON THE FRONT AND REAR SIDES OF SAID MOVABLE MEMBRANE, FIRST MOVABLE VALVE MEANS POSITIONED WITHIN SAID HOUSING INTERIOR OF SAID FLEXIBLE DIAPHRAGM, A SOURCE OF COMPRESSED AIR, MEANS COUPLING SAID SOURCE OF COMPRESSES AIR TO SAID FIRST VALVE MEANS, WITH SAID VALVE MEANS MOVABLY ACTUABLE BY SAID DIAPHRAGM WHEN IN A COMPRESSED POSITION FOR ADMITTING COMPRESSED AIR INTO SAID HOUSING, AND SECOND MOVABLE VALVE MEANS COMMUNICATING WITH THE INTERIOR OF SAID HOUSING AND MOVABLY ACTUABLE BY SAID DIAPHRAGM WHEN IN AN EXTENDED POSITION FOR EXHAUSTING AIR FROM SAID HOUSING.