US 5,707,483 A · Rotary acoustic horn

Abstract

A rotary acoustic horn imparts energy at a selected wavelength, frequency, and amplitude. The horn includes a cylindrical shaft and a cylindrical welding portion mounted on and coaxial with the shaft. The diameter of the welding portion is greater than the diameter of the shaft. The welding portion has a cylindrical weld face having a diameter that expands and contracts with the application of ultrasonic energy, and first and second opposing end portions. At least one end portion is formed with a first undercut; the radial width and the depth of the first undercut is selected to affect the amplitude of vibration at the weld face to provide a desired amplitude profile along the axial length of the weld face.

Claims23

Dependent claims

A rotary acoustic horn for imparting energy at a selected wavelength, frequency, and amplitude, wherein the horn comprises:

a shaft having an axial input end and an axial output end;
a welding portion mounted on the shaft, and having a diameter that is greater than the diameter of the shaft, wherein the welding portion comprises a weld face having a diameter that expands and contracts with the application of acoustic energy to the input end of the shaft, and first and second opposing end portions, wherein at least one end portion is formed with a first undercut, wherein the first undercut has a width and depth selected to control the amplitude of vibration at the weld face to provide a desired amplitude profile along the axial length of the weld face.

Dependencies are inferred from the claim text.

Rotary acoustic horn

Life of this patent

Rotary acoustic horn

Life of this patent

Abstract

Claims23