Acoustics – Plural diaphragm sound sources – Plural chambers
Patent
1997-11-05
1999-04-20
Dang, Khanh
Acoustics
Plural diaphragm sound sources
Plural chambers
181146, 181156, H05K 500
Patent
active
058958967
ABSTRACT:
An acoustic enclosure system includes a port chamber between two acoustic chamber assemblies. The port chamber is separated from each of the acoustic chamber assemblies by a wall. Each acoustic chamber assembly includes first and second chambers which are separated by a horizontal wall in which a loudspeaker is mounted. In one of the assemblies, the first chamber is disposed on top of the second chamber. In the other assembly, the first chamber is disposed below the second chamber. The second chambers each have a port that is open to the port chamber. The port chamber has a port that is open to the outside of the enclosure. Each of the first chambers contains a fluid chamber with a flexible bladder that is filled with fluid and maintained at a given distance from the corresponding loudspeaker. A flexible support is provided between each of the bladders and the horizontal wall so that the bladders are each substantially maintained a distance L from the respective horizontal walls.
REFERENCES:
patent: 4004094 (1977-01-01), Ott
patent: 4101736 (1978-07-01), Czerwinski
patent: 4356882 (1982-11-01), Allen
patent: 4944019 (1990-07-01), Watanabe
patent: 5073937 (1991-12-01), Almasy
patent: 5147986 (1992-09-01), Cockrum et al.
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