Acoustic apparatus with plural resonators having different reson

Details Acoustic apparatus with plural resonators having different reson Acoustic apparatus with plural resonators having different reson

1989-07-13

1991-04-30

Fuller, Benjamin R.

Acoustics

Diaphragm

With resonant chamber

181150, 181156, 181199, 381 96, 381159, G10K 1104

Patent

active

050109774

ABSTRACT:
An acoustic apparatus comprises a plurality of resonators having different resonance frequencies, each of which is constituted by a closed cavity and acoustic mass for causing the cavity to acoustically communicate with an external region. A housing enclosing the plurality cavities is integrally formed. Resonance acoustic radiation portions of the resonators are arranged adjacent to each other on one side of the housing, whereby sound sources which correspond to the acoustic mass can be concentrated.

REFERENCES:
patent: 1969704 (1934-08-01), D'Alton
patent: 4126204 (1978-11-01), Ogi et al.
patent: 4301332 (1981-11-01), Dusanek
patent: 4409588 (1983-10-01), Hofer et al.
patent: 4549631 (1985-10-01), Bose
patent: 4875546 (1989-10-01), Konar

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