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US 6,650,760 B1Granted
Loudspeaker
AssigneeFunktion One
InventorsAnthony J Andrews, Toby C. C. Hunt, John Newsham
Life of this patent
Estimating the term…
Abstract
An upper base/low mid loudspeaker comprises a conical driver and a channel defined by a housing and a central member. The central member has a portion extending into the cone to form a first generally ring-shaped region whose cross-sectional area increases in the direction of sound propagation. A second generally ring-shaped region is defined between a portion of the housing and a portion of the central member. The cross-sectional area of the second region decreases in the direction of sound propagation. The channel continues with a throat and a horn.
Claims12
An upper bass/low mid loudspeaker comprising:
- an electro-acoustic driver having a conical diaphragm;
- and a housing and a central member defining therebetween a single channel for propagation of sound from a front of said diaphragm, said central member having a first portion extending into a volume defined by said diaphragm and defining with said diaphragm a first region of said channel of ring-shaped cross-section having a transverse cross-sectional area which increases in a direction of sound propagation within said channel, said central member having a second portion disposed within a first portion of said housing to define a second region of said channel of ring-shaped cross-section having a transverse cross-sectional area which decreases in said direction of sound propagation within said channel, said housing having a second portion defining a throat extending from said second region and a third portion defining a horn extending from said throat.
Dependencies are inferred from the claim text.