[Speaker]

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2007-02-27

2007-02-27

Ni, Suhan (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S396000

Reexamination Certificate

active

10906039

ABSTRACT:
A speaker having a locating ring mounted in an accommodating open chamber inside a basket to hold down a damper is disclosed. The basket has an annular bottom rib protruded from the bottom side of the accommodating open chamber around the center of the basket, and a plurality of radial reinforcing ribs formed integral with the annular bottom rib and radially extending over the annular bottom rib to the topmost edge of the basket and equiangularly spaced around the accommodating open chamber, each radial reinforcing rib having a groove extending along the length thereof inside the accommodating open chamber and a plurality of slots formed in the groove and cut through the annular bottom rib for guiding heat and noises out of the accommodating open chamber during operation of the speaker.

REFERENCES:
patent: 3356796 (1967-12-01), Wray
patent: 6810129 (2004-10-01), Nakada

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