Loudspeaker device

Details Loudspeaker device Loudspeaker device

1975-10-30

1977-08-30

Franklin, Lawrence R.

Acoustics

Diaphragm and enclosure

With sound-absorbing means

H05K 500

Patent

active

040448550

ABSTRACT:
A loudspeaker device, wherein a speaker cabinet fitted with a speaker unit is filled with flexible gas-bearing material and fibrous cotton-like material. According to this invention, it is possible to increase the apparent inner volume of the cabinet, prevent the generation of a standing wave and reproduce sounds with a good quality.

REFERENCES:
patent: 2138717 (1938-11-01), Volk
patent: 2775309 (1956-12-01), Villchur
patent: 3177301 (1965-04-01), Hecht
patent: 3720285 (1973-03-01), Russell et al.
patent: 3835256 (1974-09-01), Wieder

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