Vibratory unit with seal

Claim 1

IN VIBRATORY HORN APPARATUS WHICH INCLUDES A HORN MEMBER HAVING AN AXIS AND A WORKING END, MEANS OPERATIVELY ASSOCIATED WITH SAID HORN MEMBER FOR GENERATING STANDING VIBRATIONAL WAVES IN SAID HORN OF PREDETERMINED WAVE LENGTH LOCATED SUCH THAT SAID WORKING END IS DISPOSED AT APPROXIMATELY AN ANTINODAL POINT IN SAID WAVES, A CONTAINER FOR FLUID HAVING SAID WORKING END DISPOSED THEREIN, A TOP ON SAID CONTAINER HAVING AN OPENING THROUGH WHICH SAID HORN MEMBER EXTENDS, A PORTION OF SAID HORN MEMBER DISPOSED AT APPROXIMATELY A NODAL POINT IN SAID WAVES BEING LOCATED IN SAID TOP OPENING, SAID HORN MEMBER AND SAID TOP BEING SHAPED TO FORM FACING SHOULDERS SPACED APART IN THE DIRECTION OF SAID AXIS, A RESILIENT ANNULAR SEALING RING DISPOSED BETWEEN SAID SHOULDERS, AND MEANS ENGAGED WITH AND EXTENDING BETWEEN SAID TOP AND SAID HORN MEMBER AT A POSITION SPACED FROM SAID SHOULDERS IN A DIRECTION AXIALLY OF SAID HORN MEMBER APPLYING A TENSILE FORCE TO SAID HORN MEMBER AND URGING SAID SHOULDERS TOWARD EACH OTHER TO PINCH SAID SEALING RING IN THE DIRECTION OF SAID AXIS.