Hollow conical electromechanical transducer in sealed housing

Claim 1

AN IMPROVED ELECTROMECHANICAL TRANSDUCER COMPRISING: A HOLLOW SUBSTANTIALLY RIGID NONCONDUCTIVE CONE HAVING INNER AND OUTER CONICAL SURFACES WHICH ARE EACH COATED WITH THIN CONDUCTIVE FILMS SPACED APART AT THE BASE OF SAID CONE, SAID CONE BEING OF A MATERIAL OF THE TYPE WHEREIN STRAIN IN THE ALTITUDE AND CIRCUMFERENTIAL DIMENSIONS OF THE CONE IS ACCOMPANIED BY CORRESPONDING VOLTAGE CHANGE BETWEEN SAID CONDUCTIVE FILMS AND WHEREIN CHANGE IN VOLTAGE APPLIED BETWEEN SAID CONDUCTIVE FILMS IS ACCOMPANIED BY STRAIN IN THE ALTITUDE AND CIRCUMFERENTIAL DIMENSIONS OF SAID CONE TENDING TO SET UP COMPRESSIONAL WAVES IN THE SURROUNDING MEDIUM, A COMPACT WEIGHT MEMBER WHOSE DENSITY IS GREATER THAN THAT OF THE CONE MATERIAL SECURED TO AND PROXIMAL WITH THE APEX OF SAID CONE, MEANS SECURED TO THE BASE OF SAID CONE FOR OPPOSING LATERAL TILTING OF SAID CONE AND FOR OPPOSING AXIAL MOVEMENT OF THE BASE OF SAID CONE RELATIVE THERETO TO A GREATER DEGREE THAN CIRCUMFERENTIAL STRAIN AT THE BASE OF SAID CONE WHEN COMPRESSIONAL WAVE ENERGY IS INTERCEPTED BY SAID CONE OR WHEN ELECTRICAL ENERGY IS APPLIED TO SAID CONE BY WAY OF SAID CONDUCTIVE COATINGS, AND A ROUNDED RIGID HOUSING DEFINING A SEALED CHAMBER THEREIN, SAID CONE AND SAID MEANS DISPOSED IN THE SEALED CHAMBER, SAID MEANS BEING RIGIDLY SECURED TO SAID HOUSING AT A PORTION THEREOF REMOTE FROM THE SECUREMENT THEREOF TO SAID CONE AND SAID CONE BEING SPACED FROM THE INSIDE WALLS OF SAID HOUSING, WHEREBY SAID TRANSDUCER IS ACCELERATION AND DISPLACEMENT SENSITIVE IN THE DIRECTION OF THE AXIS OF SAID CONE, AND IS SENSITIVE TO COMPRESSIONAL WAVE ENERGY INTERCEPTED BY SAID HOUSING AND IN A DIRECTION GENERALLY PARALLEL TO THE AXIS OF SAID CONE EVEN WHEN SAID TRANSDUCER IS SMALL COMPARED TO THE WAVELENGTH OF INTERCEPTED COMPRESSIONAL WAVE ENERGY.