Core cap for loudspeaker

Details Core cap for loudspeaker Core cap for loudspeaker

2008-07-15

2008-07-15

Ensey, Brian (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S412000

Reexamination Certificate

active

11057873

ABSTRACT:
A core cap or top plate for use with loudspeakers that includes offset adhesive control grooves on the opposite faces of the disk-like core cap is disclosed. The grooves are offset from one another by a distance that makes the smallest dimension between any feature of the grooves about the same as the nominal thickness of the core cap. The core cap increases the magnetic flux capacity over prior art core cap designs, while maintaining features advantageous to error-proof the orientation of the core cap in the loudspeaker.

REFERENCES:
patent: 7079665 (2006-07-01), Shimomura et al.
patent: 7149322 (2006-12-01), Kuribayashi et al.
patent: 7224817 (2007-05-01), Kosuda
patent: 2001339790 (2001-12-01), None

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