Omnidirectional ultrasonic search system

Claim 1

AN OMNIDIRECTIONAL ULTRASONIC SEARCH SYSTEM FOR DETECTING A FLAW IN A MATERIAL, WHICH COMPRISES: A TRANSDUCER FOR GENERATING AXIALLY ALIGNED ACOUSTICAL RAYS OR ENERGY WHICH ARE DIRECTED ONTO A MATERIAL TO BE TESTED FOR A FLAW AND RECEIVING ACOUSTICAL RAYS OF ENERGY REFLECTED BACK BY A FLAW WITHIN THE MATERIAL TO BE TESTED, A POLYFACED STRUCTURE SECURED RELATIVE TO SAID TRANSDUCER COAXIAL THEREWITH, SAID POLYFACED STRUCTURE HAVING AN ODD NUMBER OF SLOPING FACES FORMING A SMALL OPEN END AND A LARGER OPEN END WITH THE FACES SLOPING TOWARD THE AXIS AT THE SMALL END, SAID POLYFACED STRUCTURE BEING SECURED RELATIVE TO SAID TRANSDUCER WITH THE SMALL END THEREOF AT THE OUTPUTRECEIVING END OF SAID TRANSDUCER IN AXIAL ALIGNMENT THEREWITH, A SMALL CONE-SHAPED BODY SECURED WITHIN SAID POLYFACED STRUCTURE ON THE AXIS THEREOF WITH THE BASE THEREOF IN THE SAME PLANE AS THE BASE OF SAID POLYFACED STRUCTURE AND THE VERTEX END DIRECTED TOWARD SAID TRANSDUCER, SAID CONE-SHAPED BODY OPERATIVE TO REFLECT INCIDENT ACOUSTICAL RAYS FROM SAID TRANSDUCER ONTO SAID POLYFACED STRUCTURE AND TO REFLECT RAYS RETURNED FROM SAID POLYFACED STRUCTURE ONTO SAID TRANSDUCER, SAID POLYFACED STRUCTURE HAVING SLOPING INNER WALL SURFACES TO FOCUS INCIDENT ACOUSTICAL RAYS ONTO A TEST MATERIAL ON A LINE ALONG THE AXIS OF SAID TRANSDUCER WHEREIN A FLAW IN THE TEST MATERIAL REFLECTS THE ACOUSTICALLY RAYS BACK TO SAID TRANSDUCER VIA SAID POLYFACED STRUCTURE AND TO SAID CONE WITHIN SAID POLYFACED STRUCTURE, AND AN INDICATOR MEANS FOR RECORDING A SIGNAL PRODUCED BY SAID TRANSDUCER DUE TO THE ACOUSTICAL RAYS RETURNED TO SAID TRANSDUCER WHEREBY THE RECORDED SIGNAL REPRESENTS A FLAW IN THE TEST MATERIAL.