Loudspeaker system

Details Loudspeaker system Loudspeaker system

1989-11-30

1991-09-03

Isen, Forester W.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Split rim mounting

351188, 351205, 181151, H04R 102

Patent

active

050461044

ABSTRACT:
A portable loudspeaker system that includes loudspeaker means for reproducing relatively high audio frequencies, and amplifier means, and further includes a carrying case formed as a relatively rigid, low-density, releasably matable pair of polystyrene shells that define an enclosed interior space when mated. Mounted in an opening through a wall of one of the shells is a woofer for reproducing only relatively low audio frequencies as acoustic waves radiating away from said case. Disposed within the case is a body of sound absorbing polyurethane foam that has a plurality of relatively large voids for respectively storing the loudspeaker means, the amplifier means and an optional sound source such as a compact disc player.

REFERENCES:
patent: 3416804 (1968-12-01), Christie
patent: 3473625 (1969-10-01), Heisrath
patent: 4408095 (1983-10-01), Ariga et al.
patent: 4939912 (1990-07-01), Leonovich, Jr.

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