Transducer pressure release under high environmental pressure

Claim 1

IN A TRANSDUCER FOR USE IN AN ENVIRONMENT CHARACTERIZED BY AN ENVIRONMENTAL ACOUSTIC IMPEDANCE AND PRESSURE, THE COMBINATION COMPRISING: A VIBRATING ELEMENT HAVING COMPRESSIONAL WAVES EMANATING THEREFROM IN AT LEAST TWO DIRECTIONS; AND PRESSURE RELEASE MEANS OPERATIVELY ASSOCIATED WITH SAID VIBRATING ELEMENT AND DISPOSED TRANSVERSELY TO ONE OF SAID DIRECTIONS TO SUPPRESS COMPRESSIONAL WAVES TRAVELING IN SAID ONE DIRECTION; SAID PRESSURE RELEASE MEANS INCLUDING: AN ELASTIC UPPER MEMBER DISPOSED FOR DEFLECTION AWAY FROM SAID VIBRATING ELEMENT UPON BEING STRUCK BY COMPRESSIONAL WAVES EMANATING FROM SAID ELEMENT; A LOWER COMPLEMENTARY MEMBER DISPOSED OPPOSED TO SAID UPPER MEMBER TO FORM A CHAMBER THEREBETWEEN; A FLEXIBLE FLUID-IMPERMEABLE SEAL ENCLOSING SAID UPPER AND LOWER MEMBERS;