Extensible sound case

Details Extensible sound case Extensible sound case

1990-07-23

1992-01-21

Brown, Brian W.,

Acoustics

Diaphragm and enclosure

Rounded enclosure

181199, H05K 500

Patent

active

050820842

ABSTRACT:
An extensible sound case, comprises a speaker and an extensible sound chest assembly. The sound chest assembly can be extended to increase the space for resonance or drawn together to minimize space occupation.

REFERENCES:
patent: 4058995 (1977-11-01), Greaves
patent: 4556121 (1985-12-01), Palmaer et al.
patent: 4591020 (1986-05-01), Hruby, Jr.
patent: 4889208 (1989-12-01), Sugihara

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