Loudspeaker

Details Loudspeaker Loudspeaker

2006-07-18

2006-07-18

Le, Huyen (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S396000, C381S397000, C381S420000

Reexamination Certificate

active

07079665

ABSTRACT:
A loudspeaker has a magnetic circuit, a plastic frame to be coupled with the magnetic circuit, a voice coil disposed in a magnetic gap of the magnetic circuit, and a diaphragm connected with the voice coil. The frame and the magnetic circuit are coupled together by an elastic fastener provided on the frame. The frame and yoke are coupled together by fitting a plurality of elastic fasteners provided on a circle on a bottom surface of the frame with a yoke of the magnetic circuit. The elastic fastener can also be a clip section provided on a circle on the bottom surface of the frame. The frame and magnetic circuit are coupled together by the clip section and an extension provided along an outer circumference of the magnetic circuit.

REFERENCES:
patent: 2295483 (1942-09-01), Knowles
patent: 3176086 (1965-03-01), Coen
patent: 3991286 (1976-11-01), Henricksen
patent: 5111510 (1992-05-01), Mitobe
patent: 5940522 (1999-08-01), Cahill et al.
patent: 6373957 (2002-04-01), Stewart
patent: 0121613 (1978-10-01), None

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