Acoustics – Diaphragm – With horn
Patent
1978-04-24
1980-06-10
Hix, L. T.
Acoustics
Diaphragm
With horn
181180, 181193, 181196, G10K 1300, G10K 1100
Patent
active
042068312
ABSTRACT:
An electrically driven loudspeaker is coupled to the atmosphere, which is to carry sound to the human ear, through a hollow coupler the inlet end of which has a cross sectional area comparable to the effective area of the loudspeaker, said cross sectional area decreasing progressively from said inlet end to an outlet end of substantially smaller cross sectional area. In a specific embodiment of the invention, an exponential horn is formed within the confines of a loudspeaker cabinet enclosure, and the inlet end of the horn is coupled to the electrically driven loudspeaker by means of the hollow coupler also formed within the cabinet enclosure. The outlet end of the coupler has the same cross sectional area and shape as the inlet end of the horn.
REFERENCES:
patent: 1542906 (1925-06-01), Pace
patent: 1656140 (1928-01-01), Burk
patent: 1685086 (1928-09-01), Hutchison
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patent: 1755636 (1930-04-01), Dubilier
patent: 1878088 (1932-09-01), Zwikker
patent: 2160166 (1939-05-01), Pausin
patent: 2801703 (1957-08-01), Martin
patent: 2815087 (1957-12-01), Delort
patent: 2878887 (1959-03-01), Potter
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Griffith Joseph W.
Welch Robert B.
Fuller Benjamin R.
Hix L. T,.
Olson Oliver D.
Welch Robert B.
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