Symmetrical speaker having structural reinforcing ports

Details Symmetrical speaker having structural reinforcing ports Symmetrical speaker having structural reinforcing ports

1978-11-20

1980-05-06

Hix, L. T.

Acoustics

Diaphragm and enclosure

Reflex baffle

181199, H05K 500

Patent

active

042012740

ABSTRACT:
A cubicle enclosure body for mounting a speaker having a plurality of reflex ports peripherally disposed on one face thereof outwardly of a centrally disposed circular aperture. A speaker element is in registry with the circular aperture. The combined cross-sectional area of the ports is approximately one-fifth (1/5) of the cross-sectional area of the speaker element. A first pair of ports lie diametrically opposed to each other on a vertical plane bisecting the enclosure body, and a second pair of ports lie diametrically opposed to each other on a horizontal plane bisecting the enclosure body. Each port extends inwardly of the housing, thereby coacting with reinforcing members to serve the structural purpose of making the housing rigid and immutable to vibration.

REFERENCES:
patent: 1875171 (1932-08-01), Sprague et al.
patent: 2167625 (1939-08-01), Albano
patent: 2890297 (1959-06-01), Lehr
patent: 3746125 (1973-07-01), Hammes
patent: 4082159 (1978-04-01), Petty

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