Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
279 words
A loudspeaker horn for use with an electro-acoustical driver, the horn comprising: a throat section joined to the driver and having an entrance aperture matched to the driver, the throat section then blending to a rectangular cross-section having top and bottom walls which are substantially planar and diverge at a first angle and having side walls which are curved to maintain an exponential expansion rate of cross-section; a transition section joined to the throat section and having substantially planar top and bottom walls that diverge at a second angle and having curving side walls; a central vane having a leading portion extending from the top wall of the transition section to the bottom wall thereof, forming two air channels which expand in cross-section at an exponential rate and diverge from one another at a third angle, the air channels having a rectangular cross-section, the horizontal dimension thereof being substantially smaller than the vertical dimension; and, a wave-guide section joined to the air channels of the transition section, having planar top and bottom walls that diverge at the second angle and having said walls that are planar, blend smoothly with the side walls of the transition section and diverge outwardly at a fourth angle such that the conical expansion of the wave-guide section is nowhere more rapid than the exponential expansion rate of the transition section, a continuation and termination portion of the vertical vane being disposed in the transition section, rejoining the two air channels into one air channel of rectangular cross-section, whereby the loudspeaker horn projects acoustical energy over a substantially constant coverage angle and over a wide frequency range, properly loading the driver at all operating frequencies.
Claim 2
Dependent Claim
279 words
A loudspeaker horn for use with an electro-acoustical driver, the horn comprising: a throat section joined to the driver and having an entrance aperture matched to the driver, the throat section then blending to a rectangular cross-section having top and bottom walls which are substantially planar and diverge at a first angle and having side walls which are curved to maintain an exponential expansion rate of cross-section; a transition section joined to the throat section and having substantially planar top and bottom walls that diverge at a second angle and having curving side walls; a central vane having a leading portion extending from the top wall of the transition section to the bottom wall thereof, forming two air channels which expand in cross-section at an exponential rate and diverge from one another at a third angle, the air channels having a rectangular cross-section, the horizontal dimension thereof being substantially smaller than the vertical dimension; and, a wave-guide section joined to the air channels of the transition section, having planar top and bottom walls that diverge at the second angle and having said walls that are planar, blend smoothly with the side walls of the transition section and diverge outwardly at a fourth angle such that the conical expansion of the wave-guide section is nowhere more rapid than the exponential expansion rate of the transition section, a continuation and termination portion of the vertical vane being disposed in the transition section, rejoining the two air channels into one air channel of rectangular cross-section, whereby the loudspeaker horn projects acoustical energy over a substantially constant coverage angle and over a wide frequency range, properly loading the driver at all operating frequencies.
Claim 3
Dependent Claim
42 words
The loudspeaker horn of claim 1, further comprising a mouth section removably joined to the wave-guide section, having side, top and bottom walls that flare outwardly at a more rapid rate than those of the wave-guide section, terminating in a rectangular cross-section.
Claim 4
Dependent Claim
17 words
The loudspeaker horn of claims 1 or 2, wherein the first and second angles are the same.
Claim 5
Dependent Claim
18 words
The loudspeaker horn of claims 1 or 2, wherein the expansion rate of the throat section is hyperbolic.
Claim 6
Dependent Claim
18 words
The loudspeaker horn of claims 1 or 2, wherein the expansion rate of the transition section is hyperbolic.
Claim 7
Dependent Claim
16 words
The loudspeaker horn of claim 2, wherein the mouth section is permanently joined to the horn.
Claim 8
Dependent Claim
33 words
The loudspeaker horn of claim 2, wherein the mouth section flares more rapidly than the wave-guide section in one plane only, forming a direct continuation of the wave-guide walls in the other plane.
Claim 9
Dependent Claim
15 words
The loudspeaker horn of claim 2, wherein the walls of the mouth section are planar.
Claim 10
Dependent Claim
18 words
The loudspeaker horn of claim 1, wherein the throat section, transition section and wave-guide section are integrally formed.
Claim 11
Dependent Claim
20 words
The loudspeaker horn of claim 2, wherein the throat section transition section, wave-guide section and mouth section are integrally formed.