Ultrasonic systems

Claim 1

A RESONATOR TO PRODUCE ULTRASONIC SOUND WAVES COMPRISING, AN ELONGATED HOLLOW BODY MEMBER HAVING A TUBULAR SIDE WALL AND OPEN AT ONE END THEREOF TO FORM AN INLET FOR RECEIVING A STREAM OF PRESSURIZED FLUID, A BAFFLE SITUATED WITHIN SAID BODY MEMBER AND COMPRISING, A SOLID OVAL-SHAPED MEMBER DISPOSED AT AN ANGLE TO THE LONGITUDINAL AXIS OF SAID BODY MEMBER TO INTERSECT SAID LONGITUDINAL AXIS, THE PERIPHERAL EDGES OF SAID BAFFLE ABUTTING THE ADJOINING INTERIOR SURFACE PORTIONS OF SAID SIDE WALL TO PARTITION THE INTERIOR OF SAID BODY MEMBER INTO AN INLET PORTION ON ONE SIDE OF SAID BAFFLE AND A RESONATOR CAVITY PORTION ON THE OPPOSITE SIDE OF SAID BAFFLE, MEANS OPERATIVE TO SECURELY MOUNT SAID BAFFLE ON SAID SIDE WALL, SAID SIDE WALL HAVING FORMED THEREIN AN APERTURE OF HALF-OVOID CONFIGURATION. THE EDGES OF SAID APERTURE INCLUDING A VERTICAL WALL WHICH LIES IN A FIRST PLANE WHICH INTERSECTS SAID LONGITUDINAL AXIS OF SAID BODY MEMBER AT RIGHT ANGLES THERETO AND AN OBLIQUE WALL WHICH LIES IN A SECOND PLANE SITUATED AT AN ACUTE ANGLE WITH RESPECT TO SAID LONGITUDINAL AXIS AND WHICH INTERSECTS SAID FIRST PLANE ON LINE EXTENDING PERPENDICULARLY WITH RESPECT TO SAID LONGITUDINAL AXIS, SAID OBLIQUE WALL HAVING A FRONT EDGE AND A BACK EDGE CURVATELY FORMED AND SPACED APART FROM ONE ANOTHER BY A DISTANCE DETERMINED BY THE THICKNESS OF SAID SIDE WALL AND THE ANGLE OF INCLINATION OF SAID OBLIQUE WALL, AND A FLAT TOP SURFACE FORMED ON SAID BAFFLE AND DISPOSED IN COPLANAR RELATION WITH SAID OBLIQUE WALL FOR DIRECTING FLUID FROM SAID INLET TOWARDS SAID FRONT EDGE OF SAID APERTURE AND TERMINATING AT A FRONT EDGE DISPOSED IN SPACED RELATION WITH SAID OBLIQUE WALL TO FORM AN OPENING THEREBETWEEN, THEREBY OVERCOMING PRESSURE BUILD-UP AND COLLAPSE OF OSCILLATIONS AT SAID FRONT EDGE AND SUSTAINING AN ULTRASONIC SOUND WAVE.