Acoustics – Diaphragm and enclosure – With horn
Patent
1988-01-25
1988-12-13
Fuller, B. R.
Acoustics
Diaphragm and enclosure
With horn
181144, 181155, 181159, 181194, 181199, 381156, H05K 500
Patent
active
047904089
ABSTRACT:
Coiled Exponential Bass Midrange Horn Loudspeakers which are each characterized by a rigid cabinet of selected size having a sealed air chamber in the base thereof for receiving a low frequency speaker, or driver, and a coiled or convoluted, exponentially flared sound passage extending from the air chamber to the top of the cabinet. In a most preferred embodiment, a high frequency horn is mounted in the cabinet near the open top to extend the audio range of the loudspeaker system. The combination of a low frequency driver and a high frequency horn separated by a continuously exponentially expanding or flared, coiled or convoluted, multi-tapered sound passage chamber eliminates the need for a midrange speaker or horn.
REFERENCES:
patent: D75617 (1928-06-01), Faison
patent: 2058132 (1936-10-01), Cirelli
patent: 2310243 (1943-02-01), Klipsch
patent: 2373692 (1945-04-01), Klipsch
patent: 2731101 (1956-01-01), Klipsch
patent: 2801703 (1957-08-01), Martin
patent: 2825419 (1958-03-01), Stephens, Jr.
patent: 2871972 (1959-02-01), Glassey
patent: 3944757 (1976-03-01), Tsukamoto
patent: 4313032 (1982-01-01), Thomas et al.
patent: 4549631 (1985-10-01), Bose
Fuller B. R.
Harrison John M.
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