Portable sound speaker system

Details Portable sound speaker system Portable sound speaker system

1985-03-04

1986-04-08

Fuller, Benjamin R.

Acoustics

Plural diaphragm sound sources

With sound-asborbing means

181151, 181153, 181155, 181199, H05K 500

Patent

active

045806543

ABSTRACT:
This portable sound speaker system has an elongated cylinder supporting a layer of acoustically absorbent material lining the interior surface thereof. The cylinder has an open, raised platform as its support in a vertical position, where the platform has a first base plate carrying a plurality of spacers on which is fastened a second plate having a large central hole open to the interior of the cylinder to allow the bass sound to radiate radially outward therefrom. A first, low frequency loudspeaker is fitted down into the upper end of the cylinder, and it radiates upwardly. A second, high frequency loudspeaker is mounted above the first loudspeaker, and it radiates in a generally horizontal direction. A cylindrical speaker grille is fitted over the second loudspeaker and mounted to the top end of the cylinder.

REFERENCES:
patent: 2896737 (1959-07-01), Gellman
patent: 3371742 (1968-03-01), Norton et al.
patent: 3443660 (1969-05-01), Virva et al.
patent: 3945461 (1976-03-01), Robinson
patent: 3978941 (1976-09-01), Siebert
patent: 4348549 (1982-09-01), Berlant
patent: 4365114 (1982-12-01), Soma
patent: 4440259 (1984-04-01), Strohbeen

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