Acoustic horn

Details Acoustic horn Acoustic horn

1998-03-13

1999-08-31

Dang, Khanh

Acoustics

Sound-modifying means

Intensifying horn

1565802, B32B 3100, G10K 1100

Patent

active

059456426

ABSTRACT:
An acoustic horn imparts energy at a selected wavelength, frequency, and amplitude. The horn has at least one nodal plane and a natural frequency of vibration. The horn has an outer surface and at least one cutout located in the outer surface. The cutout is located at a longitudinal location on the surface that does not contact the nodal plane. The horn length is a function of the shape, size, number, and location of the cutouts, and is less than the length of a solid horn having the same natural frequency of vibration. The horn can vibrate at a natural frequency and the length of the horn can be less than one-half wavelength of vibration.

REFERENCES:
patent: 4131505 (1978-12-01), Davis, Jr.
patent: 4315181 (1982-02-01), Holze, Jr.
patent: 4321500 (1982-03-01), Paros et al.
patent: 4710668 (1987-12-01), Fima et al.
patent: 5014556 (1991-05-01), Dunegan
patent: 5410204 (1995-04-01), Imabayashi et al.
patent: 5763981 (1998-06-01), Okazaki et al.

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