Highly directional sound projector and receiver apparatus

Details Highly directional sound projector and receiver apparatus Highly directional sound projector and receiver apparatus

1990-08-30

1992-08-11

Hix, L. T.

Acoustics

Diaphragm and enclosure

Rounded enclosure

181184, 181199, 381154, 381162, H05K 500, G10K 1100, A47B 8106, H04R 2500

Patent

active

051371103

ABSTRACT:
An acoustic apparatus (10) adapted for use as either a sound projector or a ound receiver. The apparatus (10) comprises a bundle (20) of individual sound tubes (21, 22) disposed in a tube array unit (14) which rests on a support unit (13) operatively engaged with an acoustic unit (11). Only the ends of the individual sound tubes (21, 22) are provided with a plurality of spaced discrete sound ports (25).

REFERENCES:
patent: 1795874 (1931-03-01), Mason
patent: 1847284 (1932-03-01), Volf, Jr.
patent: 1876466 (1932-09-01), Moore
patent: 2262146 (1957-04-01), Massa
patent: 2789651 (1957-04-01), Daniels
patent: 2939922 (1960-06-01), Gorike
patent: 3793489 (1974-02-01), Sank
patent: 4421957 (1983-12-01), Wallace, Jr.
patent: 4555598 (1985-01-01), Flanagan et al.

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