Patent ID: 8887862
Filing Date: 2014-11-18
Classification: H04R

Abstract:
1. A sound energy waveguide, comprising: (a) a unitary chamber having a substantially circular input aperture at one end of said chamber and an elongated, thin output aperture at an opposed end of said chamber, said chamber comprising an outer wall having an inner surface; (b) an integral insert disposed within said unitary chamber, said insert having a continuous, smooth, outer surface and a positioning mount for disposing the insert within the inner surface of the outer wall of the unitary chamber, said insert further comprising: wherein the inner surface of the chamber wall and the insert outer surface are equidistantly disposed from each other throughout the unitary chamber when measured perpendicularly to the respective surfaces, the two wall surfaces defining an acoustic conduit between the inner surface of the outer chamber wall and the outer surface of the insert, the equidistant relationship between the surfaces in said conduit completely extending from the input aperture to the output aperture of said unitary chamber, said conduit thereby forming a waveguide that provides essentially constant length paths that extend from said input aperture to said output aperture of said unitary chamber, the waveguide propagating sound waves along said substantially constant length paths from said input aperture to said output aperture of said unitary chamber.